Add new failing test for #1743

Be consistent with line/col numbers.

.coveragerc

@@ -8,3 +8,4 @@ exclude_lines =
     if __name__ == "__main__":
     @overload
     __rich_repr__
+    @abstractmethod

.deepsource.toml

@@ -0,0 +1,7 @@
+version = 1
+
+[[analyzers]]
+name = "python"
+
+  [analyzers.meta]
+  runtime_version = "3.x.x"

.faq/FAQ.md

@@ -1,12 +1,17 @@
+---
+hide:
+  - navigation
+---
+
 <!-- Auto-generated by FAQtory -->
 <!-- Do not edit by hand! -->
 
 # Frequently Asked Questions
 
-{%- for question in questions %}
-- [{{ question.title }}](#{{ question.slug }})
-{%- endfor %}
 
+Welcome to the Textual FAQ.
+Here we try and answer any question that comes up frequently.
+If you can't find what you are looking for here, see our other [help](./help.md) channels.
 
 {%- for question in questions %}
 
@@ -15,8 +20,8 @@
 
 {{ question.body }}
 
+---
+
 {%- endfor %}
 
-<hr>
-
 Generated by [FAQtory](https://github.com/willmcgugan/faqtory)

.github/workflows/black_format.yml

@@ -0,0 +1,22 @@
+
+name: Black format check
+
+on:
+  pull_request:
+    paths:
+      - '.github/workflows/black_format.yml'
+      - '**.py'
+
+jobs:
+  black-format-check:
+    runs-on: "ubuntu-latest"
+    steps:
+      - uses: actions/checkout@v3.5.2
+      - name: Set up Python 3.11
+        uses: actions/setup-python@v4.6.0
+        with:
+          python-version: 3.11
+      - name: Install black
+        run: python -m pip install black
+      - name: Run black
+        run: black --check src

.github/workflows/codeql.yml

@@ -0,0 +1,73 @@
+name: "CodeQL"
+
+on:
+  push:
+    branches: [ 'main' ]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [ 'main' ]
+    paths:
+      - '.github/workflows/codeql.yml'
+      - '**.py'
+      - '**.pyi'
+      - '**.lock'
+      - '**.js'
+      - '**.ts'
+  schedule:
+    - cron: '10 20 * * 4'
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ${{ (matrix.language == 'swift' && 'macos-latest') || 'ubuntu-latest' }}
+    timeout-minutes: ${{ (matrix.language == 'swift' && 120) || 360 }}
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'javascript', 'python' ]
+        # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python', 'ruby', 'swift' ]
+        # Use only 'java' to analyze code written in Java, Kotlin or both
+        # Use only 'javascript' to analyze code written in JavaScript, TypeScript or both
+        # Learn more about CodeQL language support at https://aka.ms/codeql-docs/language-support
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v3
+
+    # Initializes the CodeQL tools for scanning.
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v2
+      with:
+        languages: ${{ matrix.language }}
+        # If you wish to specify custom queries, you can do so here or in a config file.
+        # By default, queries listed here will override any specified in a config file.
+        # Prefix the list here with "+" to use these queries and those in the config file.
+
+        # For more details on CodeQL's query packs, refer to: https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-code-scanning#using-queries-in-ql-packs
+        # queries: security-extended,security-and-quality
+
+
+    # Autobuild attempts to build any compiled languages (C/C++, C#, Go, Java, or Swift).
+    # If this step fails, then you should remove it and run the build manually (see below)
+    - name: Autobuild
+      uses: github/codeql-action/autobuild@v2
+
+    # ℹ️ Command-line programs to run using the OS shell.
+    # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
+
+    #   If the Autobuild fails above, remove it and uncomment the following three lines.
+    #   modify them (or add more) to build your code if your project, please refer to the EXAMPLE below for guidance.
+
+    # - run: |
+    #     echo "Run, Build Application using script"
+    #     ./location_of_script_within_repo/buildscript.sh
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v2
+      with:
+        category: "/language:${{matrix.language}}"

.github/workflows/comment.yml

@@ -1,7 +1,8 @@
-name: issues
+name: Closed issue comment
 on:
   issues:
     types: [closed]
+
 jobs:
   add-comment:
     runs-on: ubuntu-latest
@@ -14,5 +15,5 @@ jobs:
           issue-number: ${{ github.event.issue.number }}
           body: |
             Don't forget to [star](https://github.com/Textualize/textual) the repository!
-            
+
             Follow [@textualizeio](https://twitter.com/textualizeio) for Textual updates.

.github/workflows/new_issue.yml

@@ -1,7 +1,8 @@
-name: issues
+name: FAQ issue comment
 on:
   issues:
     types: [opened]
+
 jobs:
   add-comment:
     if: ${{ !contains( 'willmcgugan,darrenburns,davep,rodrigogiraoserrao', github.actor ) }}

.github/workflows/pythonpackage.yml

@@ -1,40 +1,51 @@
 name: Test Textual module
 
-on: [pull_request]
+on:
+  pull_request:
+    paths:
+      - ".github/workflows/pythonpackage.yml"
+      - "**.py"
+      - "**.pyi"
+      - "**.css"
+      - "**.ambr"
+      - "**.lock"
+      - "Makefile"
 
 jobs:
   build:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
+        os: [ubuntu-latest, windows-latest]
+        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
     defaults:
       run:
         shell: bash
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v3.5.2
+      - name: Install and configure Poetry # This could be cached, too...
+        uses: snok/install-poetry@v1.3.3
+        with:
+          version: 1.4.2
+          virtualenvs-in-project: true
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4.7.1
         with:
           python-version: ${{ matrix.python-version }}
           architecture: x64
-      - name: Install and configure Poetry
-        uses: snok/install-poetry@v1.3.3
+          allow-prereleases: true
+      - name: Load cached venv
+        id: cached-poetry-dependencies
+        uses: actions/cache@v3
         with:
-          version: 1.2.2
-          virtualenvs-in-project: true
+          path: .venv
+          key: venv-${{ runner.os }}-${{ matrix.python-version }}-${{ hashFiles('**/poetry.lock') }}
       - name: Install dependencies
-        run: poetry install --extras "dev"
+        run: poetry install --extras syntax
         if: steps.cached-poetry-dependencies.outputs.cache-hit != 'true'
-      - name: Format check with black
-        run: |
-          source $VENV
-          make format-check
-#      - name: Typecheck with mypy
-#        run: |
-#          source $VENV
-#          make typecheck
+      #      - name: Typecheck with mypy
+      #        run: |
+      #          make typecheck
       - name: Test with pytest
         run: |
           source $VENV
@@ -44,4 +55,4 @@ jobs:
         uses: actions/upload-artifact@v3
         with:
           name: snapshot-report-textual
-          path: tests/snapshot_tests/output/snapshot_report.html
+          path: snapshot_report.html

.gitignore

@@ -117,8 +117,8 @@ venv.bak/
 # mypy
 .mypy_cache/
 
-# Snapshot testing report output directory
-tests/snapshot_tests/output
+# Snapshot testing report output (default location)
+snapshot_report.html
 
 # Sandbox folder - convenient place for us to develop small test apps without leaving the repo
 sandbox/

.pre-commit-config.yaml

@@ -4,10 +4,18 @@ repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
     rev: v4.3.0
     hooks:
-      - id: trailing-whitespace
-      - id: end-of-file-fixer
-      - id: check-yaml
-        args: [ '--unsafe' ]
+      - id: check-ast  # simply checks whether the files parse as valid python
+      - id: check-builtin-literals  # requires literal syntax when initializing empty or zero python builtin types
+      - id: check-case-conflict  # checks for files that would conflict in case-insensitive filesystems
+      - id: check-merge-conflict  # checks for files that contain merge conflict strings
+      - id: check-json  # checks json files for parseable syntax
+      - id: check-toml  # checks toml files for parseable syntax
+      - id: check-yaml  # checks yaml files for parseable syntax
+        args: [ '--unsafe' ]  # Instead of loading the files, simply parse them for syntax.
+      - id: check-shebang-scripts-are-executable  # ensures that (non-binary) files with a shebang are executable
+      - id: check-vcs-permalinks  # ensures that links to vcs websites are permalinks
+      - id: end-of-file-fixer  # ensures that a file is either empty, or ends with one newline
+      - id: mixed-line-ending  # replaces or checks mixed line ending
   - repo: https://github.com/pycqa/isort
     rev: 5.12.0
     hooks:
@@ -19,4 +27,10 @@ repos:
     rev: 23.1.0
     hooks:
       - id: black
+  - repo: https://github.com/hadialqattan/pycln  # removes unused imports
+    rev: v2.3.0
+    hooks:
+      - id: pycln
+        language_version: "3.11"
+        args: [--all]
 exclude: ^tests/snapshot_tests

CHANGELOG.md

@@ -5,11 +5,828 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+
 ## Unreleased
 
+### Fixed
+
+- Duplicate CSS errors when parsing CSS from a screen https://github.com/Textualize/textual/issues/3581
+- Added missing `blur` pseudo class https://github.com/Textualize/textual/issues/3439
+- Fixed visual glitched characters on Windows due to Python limitation https://github.com/Textualize/textual/issues/2548
+- Fixed outline not rendering correctly in some scenarios (e.g. on Button widgets) https://github.com/Textualize/textual/issues/3628
+- Fixed live-reloading of screen CSS https://github.com/Textualize/textual/issues/3454
+- `Select.value` could be in an invalid state https://github.com/Textualize/textual/issues/3612
+- Off-by-one in CSS error reporting https://github.com/Textualize/textual/issues/3625
+
+### Added
+
+- Exceptions to `textual.widgets.select` https://github.com/Textualize/textual/pull/3614
+  - `InvalidSelectValueError` for when setting a `Select` to an invalid value
+  - `EmptySelectError` when creating/setting a `Select` to have no options when `allow_blank` is `False`
+- `Select` methods https://github.com/Textualize/textual/pull/3614
+  - `clear`
+  - `is_blank`
+- Constant `Select.BLANK` to flag an empty selection https://github.com/Textualize/textual/pull/3614
+- Added `restrict`, `type`, `max_length`, and `valid_empty` to Input https://github.com/Textualize/textual/pull/3657
+
+### Changed
+
+- CSS error reporting will no longer provide links to the files in question https://github.com/Textualize/textual/pull/3582
+- inline CSS error reporting will report widget/class variable where the CSS was read from https://github.com/Textualize/textual/pull/3582
+- Breaking change: Setting `Select.value` to `None` no longer clears the selection (See `Select.BLANK` and `Select.clear`) https://github.com/Textualize/textual/pull/3614
+
+
+## [0.41.0] - 2023-10-31
+
+### Fixed
+
+- Fixed `Input.cursor_blink` reactive not changing blink state after `Input` was mounted https://github.com/Textualize/textual/pull/3498
+- Fixed `Tabs.active` attribute value not being re-assigned after removing a tab or clearing https://github.com/Textualize/textual/pull/3498
+- Fixed `DirectoryTree` race-condition crash when changing path https://github.com/Textualize/textual/pull/3498
+- Fixed issue with `LRUCache.discard` https://github.com/Textualize/textual/issues/3537
+- Fixed `DataTable` not scrolling to rows that were just added https://github.com/Textualize/textual/pull/3552
+- Fixed cache bug with `DataTable.update_cell` https://github.com/Textualize/textual/pull/3551
+- Fixed CSS errors being repeated https://github.com/Textualize/textual/pull/3566
+- Fix issue with chunky highlights on buttons https://github.com/Textualize/textual/pull/3571
+- Fixed `OptionList` event leakage from `CommandPalette` to `App`.
+- Fixed crash in `LoadingIndicator` https://github.com/Textualize/textual/pull/3498
+- Fixed crash when `Tabs` appeared as a descendant of `TabbedContent` in the DOM https://github.com/Textualize/textual/pull/3602
+- Fixed the command palette cancelling other workers https://github.com/Textualize/textual/issues/3615
+
+### Added
+
+- Add Document `get_index_from_location` / `get_location_from_index` https://github.com/Textualize/textual/pull/3410
+- Add setter for `TextArea.text` https://github.com/Textualize/textual/discussions/3525
+- Added `key` argument to the `DataTable.sort()` method, allowing the table to be sorted using a custom function (or other callable) https://github.com/Textualize/textual/pull/3090
+- Added `initial` to all css rules, which restores default (i.e. value from DEFAULT_CSS) https://github.com/Textualize/textual/pull/3566
+- Added HorizontalPad to pad.py https://github.com/Textualize/textual/pull/3571
+- Added `AwaitComplete` class, to be used for optionally awaitable return values https://github.com/Textualize/textual/pull/3498
+
+### Changed
+
+- Breaking change: `Button.ACTIVE_EFFECT_DURATION` classvar converted to `Button.active_effect_duration` attribute https://github.com/Textualize/textual/pull/3498
+- Breaking change: `Input.blink_timer` made private (renamed to `Input._blink_timer`) https://github.com/Textualize/textual/pull/3498
+- Breaking change: `Input.cursor_blink` reactive updated to not run on mount (now `init=False`) https://github.com/Textualize/textual/pull/3498
+- Breaking change: `AwaitTabbedContent` class removed https://github.com/Textualize/textual/pull/3498
+- Breaking change: `Tabs.remove_tab` now returns an `AwaitComplete` instead of an `AwaitRemove` https://github.com/Textualize/textual/pull/3498
+- Breaking change: `Tabs.clear` now returns an `AwaitComplete` instead of an `AwaitRemove` https://github.com/Textualize/textual/pull/3498
+- `TabbedContent.add_pane` now returns an `AwaitComplete` instead of an `AwaitTabbedContent` https://github.com/Textualize/textual/pull/3498
+- `TabbedContent.remove_pane` now returns an `AwaitComplete` instead of an `AwaitTabbedContent` https://github.com/Textualize/textual/pull/3498
+- `TabbedContent.clear_pane` now returns an `AwaitComplete` instead of an `AwaitTabbedContent` https://github.com/Textualize/textual/pull/3498
+- `Tabs.add_tab` now returns an `AwaitComplete` instead of an `AwaitMount` https://github.com/Textualize/textual/pull/3498
+- `DirectoryTree.reload` now returns an `AwaitComplete`, which may be awaited to ensure the node has finished being processed by the internal queue https://github.com/Textualize/textual/pull/3498
+- `Tabs.remove_tab` now returns an `AwaitComplete`, which may be awaited to ensure the tab is unmounted and internal state is updated https://github.com/Textualize/textual/pull/3498
+- `App.switch_mode` now returns an `AwaitMount`, which may be awaited to ensure the screen is mounted https://github.com/Textualize/textual/pull/3498
+- Buttons will now display multiple lines, and have auto height https://github.com/Textualize/textual/pull/3539
+- DataTable now has a max-height of 100vh rather than 100%, which doesn't work with auto
+- Breaking change: empty rules now result in an error https://github.com/Textualize/textual/pull/3566
+- Improved startup time by caching CSS parsing https://github.com/Textualize/textual/pull/3575
+- Workers are now created/run in a thread-safe way https://github.com/Textualize/textual/pull/3586
+
+## [0.40.0] - 2023-10-11
+
+### Added
+
+- Added `loading` reactive property to widgets https://github.com/Textualize/textual/pull/3509
+
+## [0.39.0] - 2023-10-10
+
+### Fixed
+
+- `Pilot.click`/`Pilot.hover` can't use `Screen` as a selector https://github.com/Textualize/textual/issues/3395
+- App exception when a `Tree` is initialized/mounted with `disabled=True` https://github.com/Textualize/textual/issues/3407
+- Fixed `print` locations not being correctly reported in `textual console` https://github.com/Textualize/textual/issues/3237
+- Fix location of IME and emoji popups https://github.com/Textualize/textual/pull/3408
+- Fixed application freeze when pasting an emoji into an application on Windows https://github.com/Textualize/textual/issues/3178
+- Fixed duplicate option ID handling in the `OptionList` https://github.com/Textualize/textual/issues/3455
+- Fix crash when removing and updating DataTable cell at same time https://github.com/Textualize/textual/pull/3487
+- Fixed fractional styles to allow integer values https://github.com/Textualize/textual/issues/3414
+- Stop eating stdout/stderr in headless mode - print works again in tests https://github.com/Textualize/textual/pull/3486
+
+### Added
+
+- `OutOfBounds` exception to be raised by `Pilot` https://github.com/Textualize/textual/pull/3360
+- `TextArea.cursor_screen_offset` property for getting the screen-relative position of the cursor https://github.com/Textualize/textual/pull/3408
+- `Input.cursor_screen_offset` property for getting the screen-relative position of the cursor https://github.com/Textualize/textual/pull/3408
+- Reactive `cell_padding` (and respective parameter) to define horizontal cell padding in data table columns https://github.com/Textualize/textual/issues/3435
+- Added `Input.clear` method https://github.com/Textualize/textual/pull/3430
+- Added `TextArea.SelectionChanged` and `TextArea.Changed` messages https://github.com/Textualize/textual/pull/3442
+- Added `wait_for_dismiss` parameter to `App.push_screen` https://github.com/Textualize/textual/pull/3477
+- Allow scrollbar-size to be set to 0 to achieve scrollable containers with no visible scrollbars https://github.com/Textualize/textual/pull/3488
+
+### Changed
+
+- Breaking change: tree-sitter and tree-sitter-languages dependencies moved to `syntax` extra https://github.com/Textualize/textual/pull/3398
+- `Pilot.click`/`Pilot.hover` now raises `OutOfBounds` when clicking outside visible screen https://github.com/Textualize/textual/pull/3360
+- `Pilot.click`/`Pilot.hover` now return a Boolean indicating whether the click/hover landed on the widget that matches the selector https://github.com/Textualize/textual/pull/3360
+- Added a delay to when the `No Matches` message appears in the command palette, thus removing a flicker https://github.com/Textualize/textual/pull/3399
+- Timer callbacks are now typed more loosely https://github.com/Textualize/textual/issues/3434
+
+## [0.38.1] - 2023-09-21
+
+### Fixed
+
+- Hotfix - added missing highlight files in build distribution https://github.com/Textualize/textual/pull/3370
+
+## [0.38.0] - 2023-09-21
+
+### Added
+
+- Added a TextArea https://github.com/Textualize/textual/pull/2931
+- Added :dark and :light pseudo classes
+
+### Fixed
+
+- Fixed `DataTable` not updating component styles on hot-reloading https://github.com/Textualize/textual/issues/3312
+
+### Changed
+
+- Breaking change: CSS in DEFAULT_CSS is now automatically scoped to the widget (set SCOPED_CSS=False) to disable
+- Breaking change: Changed `Markdown.goto_anchor` to return a boolean (if the anchor was found) instead of `None` https://github.com/Textualize/textual/pull/3334
+
+## [0.37.1] - 2023-09-16
+
+### Fixed
+
+- Fixed the command palette crashing with a `TimeoutError` in any Python before 3.11 https://github.com/Textualize/textual/issues/3320
+- Fixed `Input` event leakage from `CommandPalette` to `App`.
+
+## [0.37.0] - 2023-09-15
+
+### Added
+
+- Added the command palette https://github.com/Textualize/textual/pull/3058
+- `Input` is now validated when focus moves out of it https://github.com/Textualize/textual/pull/3193
+- Attribute `Input.validate_on` (and `__init__` parameter of the same name) to customise when validation occurs https://github.com/Textualize/textual/pull/3193
+- Screen-specific (sub-)title attributes https://github.com/Textualize/textual/pull/3199:
+  - `Screen.TITLE`
+  - `Screen.SUB_TITLE`
+  - `Screen.title`
+  - `Screen.sub_title`
+- Properties `Header.screen_title` and `Header.screen_sub_title` https://github.com/Textualize/textual/pull/3199
+- Added `DirectoryTree.DirectorySelected` message https://github.com/Textualize/textual/issues/3200
+- Added `widgets.Collapsible` contributed by Sunyoung Yoo https://github.com/Textualize/textual/pull/2989
+
+### Fixed
+
+- Fixed a crash when removing an option from an `OptionList` while the mouse is hovering over the last option https://github.com/Textualize/textual/issues/3270
+- Fixed a crash in `MarkdownViewer` when clicking on a link that contains an anchor https://github.com/Textualize/textual/issues/3094
+- Fixed wrong message pump in pop_screen https://github.com/Textualize/textual/pull/3315
+
+### Changed
+
+- Widget.notify and App.notify are now thread-safe https://github.com/Textualize/textual/pull/3275
+- Breaking change: Widget.notify and App.notify now return None https://github.com/Textualize/textual/pull/3275
+- App.unnotify is now private (renamed to App._unnotify) https://github.com/Textualize/textual/pull/3275
+- `Markdown.load` will now attempt to scroll to a related heading if an anchor is provided https://github.com/Textualize/textual/pull/3244
+- `ProgressBar` explicitly supports being set back to its indeterminate state https://github.com/Textualize/textual/pull/3286
+
+## [0.36.0] - 2023-09-05
+
+### Added
+
+- TCSS styles `layer` and `layers` can be strings https://github.com/Textualize/textual/pull/3169
+- `App.return_code` for the app return code https://github.com/Textualize/textual/pull/3202
+- Added `animate` switch to `Tree.scroll_to_line` and `Tree.scroll_to_node` https://github.com/Textualize/textual/pull/3210
+- Added `Rule` widget https://github.com/Textualize/textual/pull/3209
+- Added App.current_mode to get the current mode https://github.com/Textualize/textual/pull/3233
+
+### Changed
+
+- Reactive callbacks are now scheduled on the message pump of the reactable that is watching instead of the owner of reactive attribute https://github.com/Textualize/textual/pull/3065
+- Callbacks scheduled with `call_next` will now have the same prevented messages as when the callback was scheduled https://github.com/Textualize/textual/pull/3065
+- Added `cursor_type` to the `DataTable` constructor.
+- Fixed `push_screen` not updating Screen.CSS styles https://github.com/Textualize/textual/issues/3217
+- `DataTable.add_row` accepts `height=None` to automatically compute optimal height for a row https://github.com/Textualize/textual/pull/3213
+
+### Fixed
+
+- Fixed flicker when calling pop_screen multiple times https://github.com/Textualize/textual/issues/3126
+- Fixed setting styles.layout not updating https://github.com/Textualize/textual/issues/3047
+- Fixed flicker when scrolling tree up or down a line https://github.com/Textualize/textual/issues/3206
+
+## [0.35.1]
+
+### Fixed
+
+- Fixed flash of 80x24 interface in textual-web
+
+## [0.35.0]
+
+### Added
+
+- Ability to enable/disable tabs via the reactive `disabled` in tab panes https://github.com/Textualize/textual/pull/3152
+- Textual-web driver support for Windows
+
+### Fixed
+
+- Could not hide/show/disable/enable tabs in nested `TabbedContent` https://github.com/Textualize/textual/pull/3150
+
+## [0.34.0] - 2023-08-22
+
+### Added
+
+- Methods `TabbedContent.disable_tab` and `TabbedContent.enable_tab` https://github.com/Textualize/textual/pull/3112
+- Methods `Tabs.disable` and `Tabs.enable` https://github.com/Textualize/textual/pull/3112
+- Messages `Tab.Disabled`, `Tab.Enabled`, `Tabs.TabDisabled` and `Tabs.Enabled` https://github.com/Textualize/textual/pull/3112
+- Methods `TabbedContent.hide_tab` and `TabbedContent.show_tab` https://github.com/Textualize/textual/pull/3112
+- Methods `Tabs.hide` and `Tabs.show` https://github.com/Textualize/textual/pull/3112
+- Messages `Tabs.TabHidden` and `Tabs.TabShown` https://github.com/Textualize/textual/pull/3112
+- Added `ListView.extend` method to append multiple items https://github.com/Textualize/textual/pull/3012
+
+### Changed
+
+- grid-columns and grid-rows now accept an `auto` token to detect the optimal size https://github.com/Textualize/textual/pull/3107
+- LoadingIndicator now has a minimum height of 1 line.
+
+### Fixed
+
+- Fixed auto height container with default grid-rows https://github.com/Textualize/textual/issues/1597
+- Fixed `page_up` and `page_down` bug in `DataTable` when `show_header = False` https://github.com/Textualize/textual/pull/3093
+- Fixed issue with visible children inside invisible container when moving focus https://github.com/Textualize/textual/issues/3053
+
+## [0.33.0] - 2023-08-15
+
+
+### Fixed
+
+- Fixed unintuitive sizing behaviour of TabbedContent https://github.com/Textualize/textual/issues/2411
+- Fixed relative units not always expanding auto containers https://github.com/Textualize/textual/pull/3059
+- Fixed background refresh https://github.com/Textualize/textual/issues/3055
+- Fixed `SelectionList.clear_options` https://github.com/Textualize/textual/pull/3075
+- `MouseMove` events bubble up from widgets. `App` and `Screen` receive `MouseMove` events even if there's no Widget under the cursor. https://github.com/Textualize/textual/issues/2905
+- Fixed click on double-width char https://github.com/Textualize/textual/issues/2968
+
+### Changed
+
+- Breaking change: `DOMNode.visible` now takes into account full DOM to report whether a node is visible or not.
+
+### Removed
+
+- Property `Widget.focusable_children` https://github.com/Textualize/textual/pull/3070
+
+### Added
+
+- Added an interface for replacing prompt of an individual option in an `OptionList` https://github.com/Textualize/textual/issues/2603
+- Added `DirectoryTree.reload_node` method https://github.com/Textualize/textual/issues/2757
+- Added widgets.Digit https://github.com/Textualize/textual/pull/3073
+- Added `BORDER_TITLE` and `BORDER_SUBTITLE` classvars to Widget https://github.com/Textualize/textual/pull/3097
+
+### Changed
+
+- DescendantBlur and DescendantFocus can now be used with @on decorator
+
+## [0.32.0] - 2023-08-03
+
+### Added
+
+- Added widgets.Log
+- Added Widget.is_vertical_scroll_end, Widget.is_horizontal_scroll_end, Widget.is_vertical_scrollbar_grabbed, Widget.is_horizontal_scrollbar_grabbed
+
+### Changed
+
+- Breaking change: Renamed TextLog to RichLog
+
+## [0.31.0] - 2023-08-01
+
+### Added
+
+- Added App.begin_capture_print, App.end_capture_print, Widget.begin_capture_print, Widget.end_capture_print https://github.com/Textualize/textual/issues/2952
+- Added the ability to run async methods as thread workers https://github.com/Textualize/textual/pull/2938
+- Added `App.stop_animation` https://github.com/Textualize/textual/issues/2786
+- Added `Widget.stop_animation` https://github.com/Textualize/textual/issues/2786
+
+### Changed
+
+- Breaking change: Creating a thread worker now requires that a `thread=True` keyword argument is passed https://github.com/Textualize/textual/pull/2938
+- Breaking change: `Markdown.load` no longer captures all errors and returns a `bool`, errors now propagate https://github.com/Textualize/textual/issues/2956
+- Breaking change: the default style of a `DataTable` now has `max-height: 100%` https://github.com/Textualize/textual/issues/2959
+
+### Fixed
+
+- Fixed a crash when a `SelectionList` had a prompt wider than itself https://github.com/Textualize/textual/issues/2900
+- Fixed a bug where `Click` events were bubbling up from `Switch` widgets https://github.com/Textualize/textual/issues/2366
+- Fixed a crash when using empty CSS variables https://github.com/Textualize/textual/issues/1849
+- Fixed issue with tabs in TextLog https://github.com/Textualize/textual/issues/3007
+- Fixed a bug with `DataTable` hover highlighting https://github.com/Textualize/textual/issues/2909
+
+## [0.30.0] - 2023-07-17
+
+### Added
+
+- Added `DataTable.remove_column` method https://github.com/Textualize/textual/pull/2899
+- Added notifications https://github.com/Textualize/textual/pull/2866
+- Added `on_complete` callback to scroll methods https://github.com/Textualize/textual/pull/2903
+
+### Fixed
+
+- Fixed CancelledError issue with timer https://github.com/Textualize/textual/issues/2854
+- Fixed Toggle Buttons issue with not being clickable/hoverable https://github.com/Textualize/textual/pull/2930
+
+
+## [0.29.0] - 2023-07-03
+
+### Changed
+
+- Factored dev tools (`textual` command) in to external lib (`textual-dev`).
+
+### Added
+
+- Updated `DataTable.get_cell` type hints to accept string keys https://github.com/Textualize/textual/issues/2586
+- Added `DataTable.get_cell_coordinate` method
+- Added `DataTable.get_row_index` method https://github.com/Textualize/textual/issues/2587
+- Added `DataTable.get_column_index` method
+- Added can-focus pseudo-class to target widgets that may receive focus
+- Make `Markdown.update` optionally awaitable https://github.com/Textualize/textual/pull/2838
+- Added `default` parameter to `DataTable.add_column` for populating existing rows https://github.com/Textualize/textual/pull/2836
+- Added can-focus pseudo-class to target widgets that may receive focus
+
+### Fixed
+
+- Fixed crash when columns were added to populated `DataTable` https://github.com/Textualize/textual/pull/2836
+- Fixed issues with opacity on Screens https://github.com/Textualize/textual/issues/2616
+- Fixed style problem with selected selections in a non-focused selection list https://github.com/Textualize/textual/issues/2768
+- Fixed sys.stdout and sys.stderr being None https://github.com/Textualize/textual/issues/2879
+
+## [0.28.1] - 2023-06-20
+
+### Fixed
+
+- Fixed indented code blocks not showing up in `Markdown` https://github.com/Textualize/textual/issues/2781
+- Fixed inline code blocks in lists showing out of order in `Markdown` https://github.com/Textualize/textual/issues/2676
+- Fixed list items in a `Markdown` being added to the focus chain https://github.com/Textualize/textual/issues/2380
+- Fixed `Tabs` posting unnecessary messages when removing non-active tabs https://github.com/Textualize/textual/issues/2807
+- call_after_refresh will preserve the sender within the callback https://github.com/Textualize/textual/pull/2806
+
+### Added
+
+- Added a method of allowing third party code to handle unhandled tokens in `Markdown` https://github.com/Textualize/textual/pull/2803
+- Added `MarkdownBlock` as an exported symbol in `textual.widgets.markdown` https://github.com/Textualize/textual/pull/2803
+
+### Changed
+
+- Tooltips are now inherited, so will work with compound widgets
+
+
+## [0.28.0] - 2023-06-19
+
+### Added
+
+- The devtools console now confirms when CSS files have been successfully loaded after a previous error https://github.com/Textualize/textual/pull/2716
+- Class variable `CSS` to screens https://github.com/Textualize/textual/issues/2137
+- Class variable `CSS_PATH` to screens https://github.com/Textualize/textual/issues/2137
+- Added `cursor_foreground_priority` and `cursor_background_priority` to `DataTable` https://github.com/Textualize/textual/pull/2736
+- Added Region.center
+- Added `center` parameter to `Widget.scroll_to_region`
+- Added `origin_visible` parameter to `Widget.scroll_to_region`
+- Added `origin_visible` parameter to `Widget.scroll_to_center`
+- Added `TabbedContent.tab_count` https://github.com/Textualize/textual/pull/2751
+- Added `TabbedContent.add_pane` https://github.com/Textualize/textual/pull/2751
+- Added `TabbedContent.remove_pane` https://github.com/Textualize/textual/pull/2751
+- Added `TabbedContent.clear_panes` https://github.com/Textualize/textual/pull/2751
+- Added `TabbedContent.Cleared` https://github.com/Textualize/textual/pull/2751
+
+### Fixed
+
+- Fixed setting `TreeNode.label` on an existing `Tree` node not immediately refreshing https://github.com/Textualize/textual/pull/2713
+- Correctly implement `__eq__` protocol in DataTable https://github.com/Textualize/textual/pull/2705
+- Fixed exceptions in Pilot tests being silently ignored https://github.com/Textualize/textual/pull/2754
+- Fixed issue where internal data of `OptionList` could be invalid for short window after `clear_options` https://github.com/Textualize/textual/pull/2754
+- Fixed `Tooltip` causing a `query_one` on a lone `Static` to fail https://github.com/Textualize/textual/issues/2723
+- Nested widgets wouldn't lose focus when parent is disabled https://github.com/Textualize/textual/issues/2772
+- Fixed the `Tabs` `Underline` highlight getting "lost" in some extreme situations https://github.com/Textualize/textual/pull/2751
+
+### Changed
+
+- Breaking change: The `@on` decorator will now match a message class and any child classes https://github.com/Textualize/textual/pull/2746
+- Breaking change: Styles update to checkbox, radiobutton, OptionList, Select, SelectionList, Switch https://github.com/Textualize/textual/pull/2777
+- `Tabs.add_tab` is now optionally awaitable https://github.com/Textualize/textual/pull/2778
+- `Tabs.add_tab` now takes `before` and `after` arguments to position a new tab https://github.com/Textualize/textual/pull/2778
+- `Tabs.remove_tab` is now optionally awaitable https://github.com/Textualize/textual/pull/2778
+- Breaking change: `Tabs.clear` has been changed from returning `self` to being optionally awaitable https://github.com/Textualize/textual/pull/2778
+
+## [0.27.0] - 2023-06-01
+
+### Fixed
+
+- Fixed zero division error https://github.com/Textualize/textual/issues/2673
+- Fix `scroll_to_center` when there were nested layers out of view (Compositor full_map not populated fully) https://github.com/Textualize/textual/pull/2684
+- Fix crash when `Select` widget value attribute was set in `compose` https://github.com/Textualize/textual/pull/2690
+- Issue with computing progress in workers https://github.com/Textualize/textual/pull/2686
+- Issues with `switch_screen` not updating the results callback appropriately https://github.com/Textualize/textual/issues/2650
+- Fixed incorrect mount order https://github.com/Textualize/textual/pull/2702
+
+### Added
+
+- `work` decorator accepts `description` parameter to add debug string https://github.com/Textualize/textual/issues/2597
+- Added `SelectionList` widget https://github.com/Textualize/textual/pull/2652
+- `App.AUTO_FOCUS` to set auto focus on all screens https://github.com/Textualize/textual/issues/2594
+- Option to `scroll_to_center` to ensure we don't scroll such that the top left corner of the widget is not visible https://github.com/Textualize/textual/pull/2682
+- Added `Widget.tooltip` property https://github.com/Textualize/textual/pull/2670
+- Added `Region.inflect` https://github.com/Textualize/textual/pull/2670
+- `Suggester` API to compose with widgets for automatic suggestions https://github.com/Textualize/textual/issues/2330
+- `SuggestFromList` class to let widgets get completions from a fixed set of options https://github.com/Textualize/textual/pull/2604
+- `Input` has a new component class `input--suggestion` https://github.com/Textualize/textual/pull/2604
+- Added `Widget.remove_children` https://github.com/Textualize/textual/pull/2657
+- Added `Validator` framework and validation for `Input` https://github.com/Textualize/textual/pull/2600
+- Ability to have private and public validate methods https://github.com/Textualize/textual/pull/2708
+- Ability to have private compute methods https://github.com/Textualize/textual/pull/2708
+- Added `message_hook` to App.run_test https://github.com/Textualize/textual/pull/2702
+- Added `Sparkline` widget https://github.com/Textualize/textual/pull/2631
+
+### Changed
+
+- `Placeholder` now sets its color cycle per app https://github.com/Textualize/textual/issues/2590
+- Footer now clears key highlight regardless of whether it's in the active screen or not https://github.com/Textualize/textual/issues/2606
+- The default Widget repr no longer displays classes and pseudo-classes (to reduce noise in logs). Add them to your `__rich_repr__` method if needed. https://github.com/Textualize/textual/pull/2623
+- Setting `Screen.AUTO_FOCUS` to `None` will inherit `AUTO_FOCUS` from the app instead of disabling it https://github.com/Textualize/textual/issues/2594
+- Setting `Screen.AUTO_FOCUS` to `""` will disable it on the screen https://github.com/Textualize/textual/issues/2594
+- Messages now have a `handler_name` class var which contains the name of the default handler method.
+- `Message.control` is now a property instead of a class variable. https://github.com/Textualize/textual/issues/2528
+- `Tree` and `DirectoryTree` Messages no longer accept a `tree` parameter, using `self.node.tree` instead. https://github.com/Textualize/textual/issues/2529
+- Keybinding <kbd>right</kbd> in `Input` is also used to accept a suggestion if the cursor is at the end of the input https://github.com/Textualize/textual/pull/2604
+- `Input.__init__` now accepts a `suggester` attribute for completion suggestions https://github.com/Textualize/textual/pull/2604
+- Using `switch_screen` to switch to the currently active screen is now a no-op https://github.com/Textualize/textual/pull/2692
+- Breaking change: removed `reactive.py::Reactive.var` in favor of `reactive.py::var` https://github.com/Textualize/textual/pull/2709/
+
+### Removed
+
+- `Placeholder.reset_color_cycle`
+- Removed `Widget.reset_focus` (now called `Widget.blur`) https://github.com/Textualize/textual/issues/2642
+
+## [0.26.0] - 2023-05-20
+
+### Added
+
+- Added `Widget.can_view`
+
+### Changed
+
+- Textual will now scroll focused widgets to center if not in view
+
+## [0.25.0] - 2023-05-17
+
+### Changed
+
+- App `title` and `sub_title` attributes can be set to any type https://github.com/Textualize/textual/issues/2521
+- `DirectoryTree` now loads directory contents in a worker https://github.com/Textualize/textual/issues/2456
+- Only a single error will be written by default, unless in dev mode ("debug" in App.features) https://github.com/Textualize/textual/issues/2480
+- Using `Widget.move_child` where the target and the child being moved are the same is now a no-op https://github.com/Textualize/textual/issues/1743
+- Calling `dismiss` on a screen that is not at the top of the stack now raises an exception https://github.com/Textualize/textual/issues/2575
+- `MessagePump.call_after_refresh` and `MessagePump.call_later` will now return `False` if the callback could not be scheduled. https://github.com/Textualize/textual/pull/2584
+
+### Fixed
+
+- Fixed `ZeroDivisionError` in `resolve_fraction_unit` https://github.com/Textualize/textual/issues/2502
+- Fixed `TreeNode.expand` and `TreeNode.expand_all` not posting a `Tree.NodeExpanded` message https://github.com/Textualize/textual/issues/2535
+- Fixed `TreeNode.collapse` and `TreeNode.collapse_all` not posting a `Tree.NodeCollapsed` message https://github.com/Textualize/textual/issues/2535
+- Fixed `TreeNode.toggle` and `TreeNode.toggle_all` not posting a `Tree.NodeExpanded` or `Tree.NodeCollapsed` message https://github.com/Textualize/textual/issues/2535
+- `footer--description` component class was being ignored https://github.com/Textualize/textual/issues/2544
+- Pasting empty selection in `Input` would raise an exception https://github.com/Textualize/textual/issues/2563
+- `Screen.AUTO_FOCUS` now focuses the first _focusable_ widget that matches the selector https://github.com/Textualize/textual/issues/2578
+- `Screen.AUTO_FOCUS` now works on the default screen on startup https://github.com/Textualize/textual/pull/2581
+- Fix for setting dark in App `__init__` https://github.com/Textualize/textual/issues/2583
+- Fix issue with scrolling and docks https://github.com/Textualize/textual/issues/2525
+- Fix not being able to use CSS classes with `Tab` https://github.com/Textualize/textual/pull/2589
+
+### Added
+
+- Class variable `AUTO_FOCUS` to screens https://github.com/Textualize/textual/issues/2457
+- Added `NULL_SPACING` and `NULL_REGION` to geometry.py
+
+## [0.24.1] - 2023-05-08
+
+### Fixed
+
+- Fix TypeError in code browser
+
+## [0.24.0] - 2023-05-08
+
+### Fixed
+
+- Fixed crash when creating a `DirectoryTree` starting anywhere other than `.`
+- Fixed line drawing in `Tree` when `Tree.show_root` is `True` https://github.com/Textualize/textual/issues/2397
+- Fixed line drawing in `Tree` not marking branches as selected when first getting focus https://github.com/Textualize/textual/issues/2397
+
+### Changed
+
+- The DataTable cursor is now scrolled into view when the cursor coordinate is changed programmatically https://github.com/Textualize/textual/issues/2459
+- run_worker exclusive parameter is now `False` by default https://github.com/Textualize/textual/pull/2470
+- Added `always_update` as an optional argument for `reactive.var`
+- Made Binding description default to empty string, which is equivalent to show=False https://github.com/Textualize/textual/pull/2501
+- Modified Message to allow it to be used as a dataclass https://github.com/Textualize/textual/pull/2501
+- Decorator `@on` accepts arbitrary `**kwargs` to apply selectors to attributes of the message https://github.com/Textualize/textual/pull/2498
+
+### Added
+
+- Property `control` as alias for attribute `tabs` in `Tabs` messages https://github.com/Textualize/textual/pull/2483
+- Experimental: Added "overlay" rule https://github.com/Textualize/textual/pull/2501
+- Experimental: Added "constrain" rule https://github.com/Textualize/textual/pull/2501
+- Added textual.widgets.Select https://github.com/Textualize/textual/pull/2501
+- Added Region.translate_inside https://github.com/Textualize/textual/pull/2501
+- `TabbedContent` now takes kwargs `id`, `name`, `classes`, and `disabled`, upon initialization, like other widgets https://github.com/Textualize/textual/pull/2497
+- Method `DataTable.move_cursor` https://github.com/Textualize/textual/issues/2472
+- Added `OptionList.add_options` https://github.com/Textualize/textual/pull/2508
+- Added `TreeNode.is_root` https://github.com/Textualize/textual/pull/2510
+- Added `TreeNode.remove_children` https://github.com/Textualize/textual/pull/2510
+- Added `TreeNode.remove` https://github.com/Textualize/textual/pull/2510
+- Added classvar `Message.ALLOW_SELECTOR_MATCH` https://github.com/Textualize/textual/pull/2498
+- Added `ALLOW_SELECTOR_MATCH` to all built-in messages associated with widgets https://github.com/Textualize/textual/pull/2498
+- Markdown document sub-widgets now reference the container document
+- Table of contents of a markdown document now references the document
+- Added the `control` property to messages
+  - `DirectoryTree.FileSelected`
+  - `ListView`
+    - `Highlighted`
+    - `Selected`
+  - `Markdown`
+    - `TableOfContentsUpdated`
+    - `TableOfContentsSelected`
+    - `LinkClicked`
+  - `OptionList`
+    - `OptionHighlighted`
+    - `OptionSelected`
+  - `RadioSet.Changed`
+  - `TabContent.TabActivated`
+  - `Tree`
+    - `NodeSelected`
+    - `NodeHighlighted`
+    - `NodeExpanded`
+    - `NodeCollapsed`
+
+## [0.23.0] - 2023-05-03
+
+### Fixed
+
+- Fixed `outline` top and bottom not handling alpha - https://github.com/Textualize/textual/issues/2371
+- Fixed `!important` not applying to `align` https://github.com/Textualize/textual/issues/2420
+- Fixed `!important` not applying to `border` https://github.com/Textualize/textual/issues/2420
+- Fixed `!important` not applying to `content-align` https://github.com/Textualize/textual/issues/2420
+- Fixed `!important` not applying to `outline` https://github.com/Textualize/textual/issues/2420
+- Fixed `!important` not applying to `overflow` https://github.com/Textualize/textual/issues/2420
+- Fixed `!important` not applying to `scrollbar-size` https://github.com/Textualize/textual/issues/2420
+- Fixed `outline-right` not being recognised https://github.com/Textualize/textual/issues/2446
+- Fixed OSError when a file system is not available https://github.com/Textualize/textual/issues/2468
+
+### Changed
+
+- Setting attributes with a `compute_` method will now raise an `AttributeError` https://github.com/Textualize/textual/issues/2383
+- Unknown psuedo-selectors will now raise a tokenizer error (previously they were silently ignored) https://github.com/Textualize/textual/pull/2445
+- Breaking change: `DirectoryTree.FileSelected.path` is now always a `Path` https://github.com/Textualize/textual/issues/2448
+- Breaking change: `Directorytree.load_directory` renamed to `Directorytree._load_directory` https://github.com/Textualize/textual/issues/2448
+- Unknown pseudo-selectors will now raise a tokenizer error (previously they were silently ignored) https://github.com/Textualize/textual/pull/2445
+
+### Added
+
+- Watch methods can now optionally be private https://github.com/Textualize/textual/issues/2382
+- Added `DirectoryTree.path` reactive attribute https://github.com/Textualize/textual/issues/2448
+- Added `DirectoryTree.FileSelected.node` https://github.com/Textualize/textual/pull/2463
+- Added `DirectoryTree.reload` https://github.com/Textualize/textual/issues/2448
+- Added textual.on decorator https://github.com/Textualize/textual/issues/2398
+
+## [0.22.3] - 2023-04-29
+
+### Fixed
+
+- Fixed `textual run` on Windows https://github.com/Textualize/textual/issues/2406
+- Fixed top border of button hover state
+
+## [0.22.2] - 2023-04-29
+
+### Added
+
+- Added `TreeNode.tree` as a read-only public attribute https://github.com/Textualize/textual/issues/2413
+
+### Fixed
+
+- Fixed superfluous style updates for focus-within pseudo-selector
+
+## [0.22.1] - 2023-04-28
+
+### Fixed
+
+- Fixed timer issue https://github.com/Textualize/textual/issues/2416
+- Fixed `textual run` issue https://github.com/Textualize/textual/issues/2391
+
+## [0.22.0] - 2023-04-27
+
+### Fixed
+
+- Fixed broken fr units when there is a min or max dimension https://github.com/Textualize/textual/issues/2378
+- Fixed plain text in Markdown code blocks with no syntax being difficult to read https://github.com/Textualize/textual/issues/2400
+
+### Added
+
+- Added `ProgressBar` widget https://github.com/Textualize/textual/pull/2333
+
+### Changed
+
+- All `textual.containers` are now `1fr` in relevant dimensions by default https://github.com/Textualize/textual/pull/2386
+
+
+## [0.21.0] - 2023-04-26
+
+### Changed
+
+- `textual run` execs apps in a new context.
+- Textual console no longer parses console markup.
+- Breaking change: `Container` no longer shows required scrollbars by default https://github.com/Textualize/textual/issues/2361
+- Breaking change: `VerticalScroll` no longer shows a required horizontal scrollbar by default
+- Breaking change: `HorizontalScroll` no longer shows a required vertical scrollbar by default
+- Breaking change: Renamed `App.action_add_class_` to `App.action_add_class`
+- Breaking change: Renamed `App.action_remove_class_` to `App.action_remove_class`
+- Breaking change: `RadioSet` is now a single focusable widget https://github.com/Textualize/textual/pull/2372
+- Breaking change: Removed `containers.Content` (use `containers.VerticalScroll` now)
+
+### Added
+
+- Added `-c` switch to `textual run` which runs commands in a Textual dev environment.
+- Breaking change: standard keyboard scrollable navigation bindings have been moved off `Widget` and onto a new base class for scrollable containers (see also below addition) https://github.com/Textualize/textual/issues/2332
+- `ScrollView` now inherits from `ScrollableContainer` rather than `Widget` https://github.com/Textualize/textual/issues/2332
+- Containers no longer inherit any bindings from `Widget` https://github.com/Textualize/textual/issues/2331
+- Added `ScrollableContainer`; a container class that binds the common navigation keys to scroll actions (see also above breaking change) https://github.com/Textualize/textual/issues/2332
+
+### Fixed
+
+- Fixed dark mode toggles in a "child" screen not updating a "parent" screen https://github.com/Textualize/textual/issues/1999
+- Fixed "panel" border not exposed via CSS
+- Fixed `TabbedContent.active` changes not changing the actual content https://github.com/Textualize/textual/issues/2352
+- Fixed broken color on macOS Terminal https://github.com/Textualize/textual/issues/2359
+
+## [0.20.1] - 2023-04-18
+
+### Fix
+
+- New fix for stuck tabs underline https://github.com/Textualize/textual/issues/2229
+
+## [0.20.0] - 2023-04-18
+
+### Changed
+
+- Changed signature of Driver. Technically a breaking change, but unlikely to affect anyone.
+- Breaking change: Timer.start is now private, and returns None. There was no reason to call this manually, so unlikely to affect anyone.
+- A clicked tab will now be scrolled to the center of its tab container https://github.com/Textualize/textual/pull/2276
+- Style updates are now done immediately rather than on_idle https://github.com/Textualize/textual/pull/2304
+- `ButtonVariant` is now exported from `textual.widgets.button` https://github.com/Textualize/textual/issues/2264
+- `HorizontalScroll` and `VerticalScroll` are now focusable by default https://github.com/Textualize/textual/pull/2317
+
+### Added
+
+- Added `DataTable.remove_row` method https://github.com/Textualize/textual/pull/2253
+- option `--port` to the command `textual console` to specify which port the console should connect to https://github.com/Textualize/textual/pull/2258
+- `Widget.scroll_to_center` method to scroll children to the center of container widget https://github.com/Textualize/textual/pull/2255 and https://github.com/Textualize/textual/pull/2276
+- Added `TabActivated` message to `TabbedContent` https://github.com/Textualize/textual/pull/2260
+- Added "panel" border style https://github.com/Textualize/textual/pull/2292
+- Added `border-title-color`, `border-title-background`, `border-title-style` rules https://github.com/Textualize/textual/issues/2289
+- Added `border-subtitle-color`, `border-subtitle-background`, `border-subtitle-style` rules https://github.com/Textualize/textual/issues/2289
+
+### Fixed
+
+- Fixed order styles are applied in DataTable - allows combining of renderable styles and component classes https://github.com/Textualize/textual/pull/2272
+- Fixed key combos with up/down keys in some terminals https://github.com/Textualize/textual/pull/2280
+- Fix empty ListView preventing bindings from firing https://github.com/Textualize/textual/pull/2281
+- Fix `get_component_styles` returning incorrect values on first call when combined with pseudoclasses https://github.com/Textualize/textual/pull/2304
+- Fixed `active_message_pump.get` sometimes resulting in a `LookupError` https://github.com/Textualize/textual/issues/2301
+
+## [0.19.1] - 2023-04-10
+
+### Fixed
+
+- Fix viewport units using wrong viewport size  https://github.com/Textualize/textual/pull/2247
+- Fixed layout not clearing arrangement cache https://github.com/Textualize/textual/pull/2249
+
+
+## [0.19.0] - 2023-04-07
+
+### Added
+
+- Added support for filtering a `DirectoryTree` https://github.com/Textualize/textual/pull/2215
+
+### Changed
+
+- Allowed border_title and border_subtitle to accept Text objects
+- Added additional line around titles
+- When a container is auto, relative dimensions in children stretch the container. https://github.com/Textualize/textual/pull/2221
+- DataTable page up / down now move cursor
+
+### Fixed
+
+- Fixed margin not being respected when width or height is "auto" https://github.com/Textualize/textual/issues/2220
+- Fixed issue which prevent scroll_visible from working https://github.com/Textualize/textual/issues/2181
+- Fixed missing tracebacks on Windows https://github.com/Textualize/textual/issues/2027
+
+## [0.18.0] - 2023-04-04
+
+### Added
+
+- Added Worker API https://github.com/Textualize/textual/pull/2182
+
+### Changed
+
+- Breaking change: Markdown.update is no longer a coroutine https://github.com/Textualize/textual/pull/2182
+
+### Fixed
+
+- `RadioSet` is now far less likely to report `pressed_button` as `None` https://github.com/Textualize/textual/issues/2203
+
+## [0.17.3] - 2023-04-02
+
+### [Fixed]
+
+- Fixed scrollable area not taking in to account dock https://github.com/Textualize/textual/issues/2188
+
+## [0.17.2] - 2023-04-02
+
+### [Fixed]
+
+- Fixed bindings persistance https://github.com/Textualize/textual/issues/1613
+- The `Markdown` widget now auto-increments ordered lists https://github.com/Textualize/textual/issues/2002
+- Fixed modal bindings https://github.com/Textualize/textual/issues/2194
+- Fix binding enter to active button https://github.com/Textualize/textual/issues/2194
+
+### [Changed]
+
+- tab and shift+tab are now defined on Screen.
+
+## [0.17.1] - 2023-03-30
+
+### Fixed
+
+- Fix cursor not hiding on Windows https://github.com/Textualize/textual/issues/2170
+- Fixed freeze when ctrl-clicking links https://github.com/Textualize/textual/issues/2167 https://github.com/Textualize/textual/issues/2073
+
+## [0.17.0] - 2023-03-29
+
+### Fixed
+
+- Issue with parsing action strings whose arguments contained quoted closing parenthesis https://github.com/Textualize/textual/pull/2112
+- Issues with parsing action strings with tuple arguments https://github.com/Textualize/textual/pull/2112
+- Issue with watching for CSS file changes https://github.com/Textualize/textual/pull/2128
+- Fix for tabs not invalidating https://github.com/Textualize/textual/issues/2125
+- Fixed scrollbar layers issue https://github.com/Textualize/textual/issues/1358
+- Fix for interaction between pseudo-classes and widget-level render caches https://github.com/Textualize/textual/pull/2155
+
+### Changed
+
+- DataTable now has height: auto by default. https://github.com/Textualize/textual/issues/2117
+- Textual will now render strings within renderables (such as tables) as Console Markup by default. You can wrap your text with rich.Text() if you want the original behavior. https://github.com/Textualize/textual/issues/2120
+- Some widget methods now return `self` instead of `None` https://github.com/Textualize/textual/pull/2102:
+  - `Widget`: `refresh`, `focus`, `reset_focus`
+  - `Button.press`
+  - `DataTable`: `clear`, `refresh_coordinate`, `refresh_row`, `refresh_column`, `sort`
+  - `Placehoder.cycle_variant`
+  - `Switch.toggle`
+  - `Tabs.clear`
+  - `TextLog`: `write`, `clear`
+  - `TreeNode`: `expand`, `expand_all`, `collapse`, `collapse_all`, `toggle`, `toggle_all`
+  - `Tree`: `clear`, `reset`
+- Screens with alpha in their background color will now blend with the background. https://github.com/Textualize/textual/pull/2139
+- Added "thick" border style. https://github.com/Textualize/textual/pull/2139
+- message_pump.app will now set the active app if it is not already set.
+- DataTable now has max height set to 100vh
+
+### Added
+
+- Added auto_scroll attribute to TextLog https://github.com/Textualize/textual/pull/2127
+- Added scroll_end switch to TextLog.write https://github.com/Textualize/textual/pull/2127
+- Added `Widget.get_pseudo_class_state` https://github.com/Textualize/textual/pull/2155
+- Added Screen.ModalScreen which prevents App from handling bindings. https://github.com/Textualize/textual/pull/2139
+- Added TEXTUAL_LOG env var which should be a path that Textual will write verbose logs to (textual devtools is generally preferred) https://github.com/Textualize/textual/pull/2148
+- Added textual.logging.TextualHandler logging handler
+- Added Query.set_classes, DOMNode.set_classes, and `classes` setter for Widget https://github.com/Textualize/textual/issues/1081
+- Added `OptionList` https://github.com/Textualize/textual/pull/2154
+
+## [0.16.0] - 2023-03-22
+
+### Added
+- Added `parser_factory` argument to `Markdown` and `MarkdownViewer` constructors https://github.com/Textualize/textual/pull/2075
+- Added `HorizontalScroll` https://github.com/Textualize/textual/issues/1957
+- Added `Center` https://github.com/Textualize/textual/issues/1957
+- Added `Middle` https://github.com/Textualize/textual/issues/1957
+- Added `VerticalScroll` (mimicking the old behaviour of `Vertical`) https://github.com/Textualize/textual/issues/1957
+- Added `Widget.border_title` and `Widget.border_subtitle` to set border (sub)title for a widget https://github.com/Textualize/textual/issues/1864
+- Added CSS styles `border_title_align` and `border_subtitle_align`.
+- Added `TabbedContent` widget https://github.com/Textualize/textual/pull/2059
+- Added `get_child_by_type` method to widgets / app https://github.com/Textualize/textual/pull/2059
+- Added `Widget.render_str` method https://github.com/Textualize/textual/pull/2059
+- Added TEXTUAL_DRIVER environment variable
+
 ### Changed
 
 - Dropped "loading-indicator--dot" component style from LoadingIndicator https://github.com/Textualize/textual/pull/2050
+- Tabs widget now sends Tabs.Cleared when there is no active tab.
+- Breaking change: changed default behaviour of `Vertical` (see `VerticalScroll`) https://github.com/Textualize/textual/issues/1957
+- The default `overflow` style for `Horizontal` was changed to `hidden hidden` https://github.com/Textualize/textual/issues/1957
+- `DirectoryTree` also accepts `pathlib.Path` objects as the path to list https://github.com/Textualize/textual/issues/1438
+
+### Removed
+
+- Removed `sender` attribute from messages. It's now just private (`_sender`). https://github.com/Textualize/textual/pull/2071
+
+### Fixed
+
+- Fixed borders not rendering correctly. https://github.com/Textualize/textual/pull/2074
+- Fix for error when removing nodes. https://github.com/Textualize/textual/issues/2079
 
 ## [0.15.1] - 2023-03-14
 
@@ -22,6 +839,13 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Fixed
 
+- Fixed container not resizing when a widget is removed https://github.com/Textualize/textual/issues/2007
+- Fixes issue where the horizontal scrollbar would be incorrectly enabled https://github.com/Textualize/textual/pull/2024
+
+## [0.15.0] - 2023-03-13
+
+### Changed
+
 - Fixed container not resizing when a widget is removed https://github.com/Textualize/textual/issues/2007
 - Fixed issue where the horizontal scrollbar would be incorrectly enabled https://github.com/Textualize/textual/pull/2024
 - Fixed `Pilot.click` not correctly creating the mouse events https://github.com/Textualize/textual/issues/2022
@@ -356,11 +1180,14 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [0.6.0] - 2022-12-11
 
+https://textual.textualize.io/blog/2022/12/11/version-060
+
 ### Added
 
 - Added "inherited bindings" -- BINDINGS classvar will be merged with base classes, unless inherit_bindings is set to False
 - Added `Tree` widget which replaces `TreeControl`.
 - Added widget `Placeholder` https://github.com/Textualize/textual/issues/1200.
+- Added `ListView` and `ListItem` widgets https://github.com/Textualize/textual/pull/1143
 
 ### Changed
 
@@ -596,6 +1423,45 @@ https://textual.textualize.io/blog/2022/11/08/version-040/#version-040
 - New handler system for messages that doesn't require inheritance
 - Improved traceback handling
 
+[0.41.0]: https://github.com/Textualize/textual/compare/v0.40.0...v0.41.0
+[0.40.0]: https://github.com/Textualize/textual/compare/v0.39.0...v0.40.0
+[0.39.0]: https://github.com/Textualize/textual/compare/v0.38.1...v0.39.0
+[0.38.1]: https://github.com/Textualize/textual/compare/v0.38.0...v0.38.1
+[0.38.0]: https://github.com/Textualize/textual/compare/v0.37.1...v0.38.0
+[0.37.1]: https://github.com/Textualize/textual/compare/v0.37.0...v0.37.1
+[0.37.0]: https://github.com/Textualize/textual/compare/v0.36.0...v0.37.0
+[0.36.0]: https://github.com/Textualize/textual/compare/v0.35.1...v0.36.0
+[0.35.1]: https://github.com/Textualize/textual/compare/v0.35.0...v0.35.1
+[0.35.0]: https://github.com/Textualize/textual/compare/v0.34.0...v0.35.0
+[0.34.0]: https://github.com/Textualize/textual/compare/v0.33.0...v0.34.0
+[0.33.0]: https://github.com/Textualize/textual/compare/v0.32.0...v0.33.0
+[0.32.0]: https://github.com/Textualize/textual/compare/v0.31.0...v0.32.0
+[0.31.0]: https://github.com/Textualize/textual/compare/v0.30.0...v0.31.0
+[0.30.0]: https://github.com/Textualize/textual/compare/v0.29.0...v0.30.0
+[0.29.0]: https://github.com/Textualize/textual/compare/v0.28.1...v0.29.0
+[0.28.1]: https://github.com/Textualize/textual/compare/v0.28.0...v0.28.1
+[0.28.0]: https://github.com/Textualize/textual/compare/v0.27.0...v0.28.0
+[0.27.0]: https://github.com/Textualize/textual/compare/v0.26.0...v0.27.0
+[0.26.0]: https://github.com/Textualize/textual/compare/v0.25.0...v0.26.0
+[0.25.0]: https://github.com/Textualize/textual/compare/v0.24.1...v0.25.0
+[0.24.1]: https://github.com/Textualize/textual/compare/v0.24.0...v0.24.1
+[0.24.0]: https://github.com/Textualize/textual/compare/v0.23.0...v0.24.0
+[0.23.0]: https://github.com/Textualize/textual/compare/v0.22.3...v0.23.0
+[0.22.3]: https://github.com/Textualize/textual/compare/v0.22.2...v0.22.3
+[0.22.2]: https://github.com/Textualize/textual/compare/v0.22.1...v0.22.2
+[0.22.1]: https://github.com/Textualize/textual/compare/v0.22.0...v0.22.1
+[0.22.0]: https://github.com/Textualize/textual/compare/v0.21.0...v0.22.0
+[0.21.0]: https://github.com/Textualize/textual/compare/v0.20.1...v0.21.0
+[0.20.1]: https://github.com/Textualize/textual/compare/v0.20.0...v0.20.1
+[0.20.0]: https://github.com/Textualize/textual/compare/v0.19.1...v0.20.0
+[0.19.1]: https://github.com/Textualize/textual/compare/v0.19.0...v0.19.1
+[0.19.0]: https://github.com/Textualize/textual/compare/v0.18.0...v0.19.0
+[0.18.0]: https://github.com/Textualize/textual/compare/v0.17.4...v0.18.0
+[0.17.3]: https://github.com/Textualize/textual/compare/v0.17.2...v0.17.3
+[0.17.2]: https://github.com/Textualize/textual/compare/v0.17.1...v0.17.2
+[0.17.1]: https://github.com/Textualize/textual/compare/v0.17.0...v0.17.1
+[0.17.0]: https://github.com/Textualize/textual/compare/v0.16.0...v0.17.0
+[0.16.0]: https://github.com/Textualize/textual/compare/v0.15.1...v0.16.0
 [0.15.1]: https://github.com/Textualize/textual/compare/v0.15.0...v0.15.1
 [0.15.0]: https://github.com/Textualize/textual/compare/v0.14.0...v0.15.0
 [0.14.0]: https://github.com/Textualize/textual/compare/v0.13.0...v0.14.0

CONTRIBUTING.md

@@ -0,0 +1,110 @@
+# Contributing to Textual
+
+First of all, thanks for taking the time to contribute to Textual!
+
+## How can I contribute?
+
+You can contribute to Textual in many ways:
+
+ 1. [Report a bug](https://github.com/textualize/textual/issues/new?title=%5BBUG%5D%20short%20bug%20description&template=bug_report.md)
+ 2. Add a new feature
+ 3. Fix a bug
+ 4. Improve the documentation
+
+
+## Setup
+
+To make a code or documentation contribution you will need to set up Textual locally.
+You can follow these steps:
+
+ 1. Make sure you have Poetry installed ([see instructions here](https://python-poetry.org))
+ 2. Clone the Textual repository
+ 3. Run `poetry shell` to create a virtual environment for the dependencies
+ 4. Run `poetry install` to install all dependencies
+ 5. Make sure the latest version of Textual was installed by running the command `textual --version`
+ 6. Install the pre-commit hooks with the command `pre-commit install`
+
+## Demo
+
+Once you have Textual installed, run the Textual demo to get an impression of what Textual can do and to double check that everything was installed correctly:
+
+```bash
+python -m textual
+```
+
+## Guidelines
+
+- Read any issue instructions carefully. Feel free to ask for clarification if any details are missing.
+
+- Add docstrings to all of your code (functions, methods, classes, ...). The codebase should have enough examples for you to copy from.
+
+- Write tests for your code.
+  - If you are fixing a bug, make sure to add regression tests that link to the original issue.
+  - If you are implementing a visual element, make sure to add _snapshot tests_. [See below](#snapshot-testing) for more details.
+
+## Before opening a PR
+
+Before you open your PR, please go through this checklist and make sure you've checked all the items that apply:
+
+ - [ ] Update the `CHANGELOG.md`
+ - [ ] Format your code with black (`make format`)
+ - [ ] All your code has docstrings in the style of the rest of the codebase
+ - [ ] Your code passes all tests (`make test`)
+
+([Read this](#makefile-commands) if the command `make` doesn't work for you.)
+
+## Updating and building the documentation
+
+If you change the documentation, you will want to build the documentation to make sure everything looks like it should.
+The command `make docs-serve-offline` should start a server that will let you preview the documentation locally and that should reload whenever you save changes to the documentation or the code files.
+
+([Read this](#makefile-commands) if the command `make` doesn't work for you.)
+
+We strive to write our documentation in a clear and accessible way so, if you find any issues with the documentation, we encourage you to open an issue where you can enumerate the things you think should be changed or added.
+
+Opening an issue or a discussion is typically better than opening a PR directly.
+That's because there are many subjective considerations that go into writing documentation and we cannot expect you, a well-intentioned external contributor, to be aware of those subjective considerations that we take into account when writing our documentation.
+
+Of course, this does not apply to objective/technical issues with the documentation like bugs or broken links.
+
+## After opening a PR
+
+When you open a PR, your code will be reviewed by one of the Textual maintainers.
+In that review process,
+
+- We will take a look at all of the changes you are making
+- We might ask for clarifications (why did you do X or Y?)
+- We might ask for more tests/more documentation
+- We might ask for some code changes
+
+The sole purpose of those interactions is to make sure that, in the long run, everyone has the best experience possible with Textual and with the feature you are implementing/fixing.
+
+Don't be discouraged if a reviewer asks for code changes.
+If you go through our history of pull requests, you will see that every single one of the maintainers has had to make changes following a review.
+
+## Snapshot testing
+
+Snapshot tests ensure that visual things (like widgets) look like they are supposed to.
+PR [#1969](https://github.com/Textualize/textual/pull/1969) is a good example of what adding snapshot tests looks like: it amounts to a change in the file `tests/snapshot_tests/test_snapshots.py` that should run an app that you write and compare it against a historic snapshot of what that app should look like.
+
+When you create a new snapshot test, run it with `pytest -vv tests/snapshot_tests/test_snapshots.py`.
+Because you just created this snapshot test, there is no history to compare against and the test will fail.
+After running the snapshot tests, you should see a link that opens an interface in your browser.
+This interface should show all failing snapshot tests and a side-by-side diff between what the app looked like when the test ran versus the historic snapshot.
+
+Make sure your snapshot app looks like it is supposed to and that you didn't break any other snapshot tests.
+If everything looks fine, you can run `make test-snapshot-update` to update the snapshot history with your new snapshot.
+This will write to the file `tests/snapshot_tests/__snapshots__/test_snapshots.ambr`, which you should NOT modify by hand.
+
+([Read this](#makefile-commands) if the command `make` doesn't work for you.)
+
+## Join the community
+
+Seems a little overwhelming?
+Join our community on [Discord](https://discord.gg/Enf6Z3qhVr) to get help!
+
+## Makefile commands
+
+Textual has a `Makefile` file that contains the most common commands used when developing Textual.
+([Read about Make and makefiles on Wikipedia.](https://en.wikipedia.org/wiki/Make_(software)))
+If you don't have Make and you're on Windows, you may want to [install Make](https://stackoverflow.com/q/32127524/2828287).

FAQ.md

@@ -1,202 +0,0 @@
-<!-- Auto-generated by FAQtory -->
-<!-- Do not edit by hand! -->
-
-# Frequently Asked Questions
-- [Does Textual support images?](#does-textual-support-images)
-- [How can I fix ImportError cannot import name ComposeResult from textual.app ?](#how-can-i-fix-importerror-cannot-import-name-composeresult-from-textualapp-)
-- [How can I select and copy text in a Textual app?](#how-can-i-select-and-copy-text-in-a-textual-app)
-- [How do I center a widget in a screen?](#how-do-i-center-a-widget-in-a-screen)
-- [How do I pass arguments to an app?](#how-do-i-pass-arguments-to-an-app)
-- [Why doesn't Textual look good on macOS?](#why-doesn't-textual-look-good-on-macos)
-- [Why doesn't Textual support ANSI themes?](#why-doesn't-textual-support-ansi-themes)
-
-<a name="does-textual-support-images"></a>
-## Does Textual support images?
-
-Textual doesn't have built in support for images yet, but it is on the [Roadmap](https://textual.textualize.io/roadmap/).
-
-See also the [rich-pixels](https://github.com/darrenburns/rich-pixels) project for a Rich renderable for images that works with Textual.
-
-<a name="how-can-i-fix-importerror-cannot-import-name-composeresult-from-textualapp-"></a>
-## How can I fix ImportError cannot import name ComposeResult from textual.app ?
-
-You likely have an older version of Textual. You can install the latest version by adding the `-U` switch which will force pip to upgrade.
-
-The following should do it:
-
-```
-pip install "textual[dev]" -U
-```
-
-<a name="how-can-i-select-and-copy-text-in-a-textual-app"></a>
-## How can I select and copy text in a Textual app?
-
-Running a Textual app puts your terminal in to *application mode* which disables clicking and dragging to select text.
-Most terminal emulators offer a modifier key which you can hold while you click and drag to restore the behavior you
-may expect from the command line. The exact modifier key depends on the terminal and platform you are running on.
-
-- **iTerm** Hold the OPTION key.
-- **Gnome Terminal** Hold the SHIFT key.
-- **Windows Terminal** Hold the SHIFT key.
-
-Refer to the documentation for your terminal emulator, if it is not listed above.
-
-<a name="how-do-i-center-a-widget-in-a-screen"></a>
-## How do I center a widget in a screen?
-
-To center a widget within a container use
-[`align`](https://textual.textualize.io/styles/align/). But remember that
-`align` works on the *children* of a container, it isn't something you use
-on the child you want centered.
-
-For example, here's an app that shows a `Button` in the middle of a
-`Screen`:
-
-```python
-from textual.app import App, ComposeResult
-from textual.widgets import Button
-
-class ButtonApp(App):
-
-    CSS = """
-    Screen {
-        align: center middle;
-    }
-    """
-
-    def compose(self) -> ComposeResult:
-        yield Button("PUSH ME!")
-
-if __name__ == "__main__":
-    ButtonApp().run()
-```
-
-If you use the above on multiple widgets, you'll find they appear to
-"left-align" in the center of the screen, like this:
-
-```
-+-----+
-|     |
-+-----+
-
-+---------+
-|         |
-+---------+
-
-+---------------+
-|               |
-+---------------+
-```
-
-If you want them more like this:
-
-```
-     +-----+
-     |     |
-     +-----+
-
-   +---------+
-   |         |
-   +---------+
-
-+---------------+
-|               |
-+---------------+
-```
-
-the best approach is to wrap each widget in a container that individually
-centers it. For example:
-
-```python
-from textual.app import App, ComposeResult
-from textual.containers import Container
-from textual.widgets import Button
-
-class Center( Container ):
-    DEFAULT_CSS = """
-    Center {
-        height: auto;
-        width: 100%;
-        align: center middle;
-    }
-    """
-
-class ButtonApp(App):
-
-    CSS = """
-    Screen {
-        align: center middle;
-    }
-    """
-
-    def compose(self) -> ComposeResult:
-        yield Center(Button("PUSH ME!"))
-        yield Center(Button("AND ME!"))
-        yield Center(Button("ALSO PLEASE PUSH ME!"))
-        yield Center(Button("HEY ME ALSO!!"))
-
-if __name__ == "__main__":
-    ButtonApp().run()
-```
-
-<a name="how-do-i-pass-arguments-to-an-app"></a>
-## How do I pass arguments to an app?
-
-When creating your `App` class, override `__init__` as you would when
-inheriting normally. For example:
-
-```python
-from textual.app import App, ComposeResult
-from textual.widgets import Static
-
-class Greetings(App[None]):
-
-    def __init__(self, greeting: str="Hello", to_greet: str="World") -> None:
-        self.greeting = greeting
-        self.to_greet = to_greet
-        super().__init__()
-
-    def compose(self) -> ComposeResult:
-        yield Static(f"{self.greeting}, {self.to_greet}")
-```
-
-Then the app can be run, passing in various arguments; for example:
-
-```python
-# Running with default arguments.
-Greetings().run()
-
-# Running with a keyword arguyment.
-Greetings(to_greet="davep").run()
-
-# Running with both positional arguments.
-Greetings("Well hello", "there").run()
-```
-
-<a name="why-doesn't-textual-look-good-on-macos"></a>
-## Why doesn't Textual look good on macOS?
-
-The default macOS `Terminal.app` is getting rather old now; it has problems
-such as being limited to just 256 colors, being slow to draw and not all
-box-drawing characters are fully-supported. We recommend installing a newer
-terminal such as [iTerm2](https://iterm2.com/),
-[Kitty](https://sw.kovidgoyal.net/kitty/) or
-[WezTerm](https://wezfurlong.org/wezterm/).
-
-<a name="why-doesn't-textual-support-ansi-themes"></a>
-## Why doesn't Textual support ANSI themes?
-
-Textual will not generate escape sequences for the 16 themeable *ANSI* colors.
-
-This is an intentional design decision we took for for the following reasons:
-
-- Not everyone has a carefully chosen ANSI color theme. Color combinations which may look fine on your system, may be unreadable on another machine. There is very little an app author or Textual can do to resolve this. Asking users to simply pick a better theme is not a good solution, since not all users will know how.
-- ANSI colors can't be manipulated in the way Textual can do with other colors. Textual can blend colors and produce light and dark shades from an original color, which is used to create more readable text and user interfaces. Color blending will also be used to power future accessibility features.
-
-Textual has a design system which guarantees apps will be readable on all platforms and terminals, and produces better results than ANSI colors.
-
-There is currently a light and dark version of the design system, but more are planned. It will also be possible for users to customize the source colors on a per-app or per-system basis. This means that in the future you will be able to modify the core colors to blend in with your chosen terminal theme.
-
-<hr>
-
-Generated by [FAQtory](https://github.com/willmcgugan/faqtory)

Makefile

@@ -12,6 +12,10 @@ unit-test:
 test-snapshot-update:
 	$(run) pytest --cov-report term-missing --cov=textual tests/ -vv --snapshot-update
 
+.PHONY: coverage
+coverage:
+	$(run) coverage html
+
 .PHONY: typecheck
 typecheck:
 	$(run) mypy src/textual
@@ -28,6 +32,10 @@ format-check:
 clean-screenshot-cache:
 	rm -rf .screenshot_cache
 
+.PHONY: faq
+faq:
+	$(run) faqtory build
+
 .PHONY: docs-offline-nav
 docs-offline-nav:
 	echo "INHERIT: mkdocs-offline.yml" > mkdocs-nav-offline.yml
@@ -43,6 +51,11 @@ docs-serve: clean-screenshot-cache docs-online-nav
 	$(run) mkdocs serve --config-file mkdocs-nav-online.yml
 	rm -f mkdocs-nav-online.yml
 
+.PHONY: docs-serve-offline
+docs-serve-offline: clean-screenshot-cache docs-offline-nav
+	$(run) mkdocs serve --config-file mkdocs-nav-offline.yml
+	rm -f mkdocs-nav-offline.yml
+
 .PHONY: docs-build
 docs-build: docs-online-nav
 	$(run) mkdocs build --config-file mkdocs-nav-online.yml
@@ -71,7 +84,8 @@ clean: clean-screenshot-cache clean-offline-docs
 
 .PHONY: setup
 setup:
-	poetry install --extras dev
+	poetry install
+	poetry install --extras syntax
 
 .PHONY: update
 update:
@@ -80,3 +94,11 @@ update:
 .PHONY: install-pre-commit
 install-pre-commit:
 	$(run) pre-commit install
+
+.PHONY: demo
+demo:
+	$(run) python -m textual
+
+.PHONY: repl
+repl:
+	$(run) python

README.md

@@ -1,17 +1,24 @@
-# Textual
+
+
 
 ![Textual splash image](https://raw.githubusercontent.com/Textualize/textual/main/imgs/textual.png)
 
+[![Discord](https://img.shields.io/discord/1026214085173461072)](https://discord.gg/Enf6Z3qhVr)
+
+
+# Textual
+
 Textual is a *Rapid Application Development* framework for Python.
 
 Build sophisticated user interfaces with a simple Python API. Run your apps in the terminal and (coming soon) a web browser!
 
-<details>  
+
+<details>
   <summary> 🎬 Demonstration </summary>
   <hr>
-  
+
 A quick run through of some Textual features.
-  
+
 
 
 https://user-images.githubusercontent.com/554369/197355913-65d3c125-493d-4c05-a590-5311f16c40ff.mov
@@ -21,12 +28,11 @@ https://user-images.githubusercontent.com/554369/197355913-65d3c125-493d-4c05-a5
  </details>
 
 
-
 ## About
 
 Textual adds interactivity to [Rich](https://github.com/Textualize/rich) with an API inspired by modern web development.
 
-On modern terminal software (installed by default on most systems), Textual apps can use **16.7 million** colors with mouse support and smooth flicker-free animation. A powerful layout engine and re-usable components makes it possible to build apps that rival the desktop and web experience. 
+On modern terminal software (installed by default on most systems), Textual apps can use **16.7 million** colors with mouse support and smooth flicker-free animation. A powerful layout engine and re-usable components makes it possible to build apps that rival the desktop and web experience.
 
 ## Compatibility
 
@@ -37,10 +43,16 @@ Textual runs on Linux, macOS, and Windows. Textual requires Python 3.7 or above.
 Install Textual via pip:
 
 ```
-pip install "textual[dev]"
+pip install textual
 ```
 
-The addition of `[dev]` installs Textual development tools. See the [docs](https://textual.textualize.io/getting_started/) if you need help getting started.
+If you plan on developing Textual apps, you should also install the development tools with the following command:
+
+```
+pip install textual-dev
+```
+
+See the [docs](https://textual.textualize.io/getting_started/) if you need help getting started.
 
 ## Demo
 
@@ -56,6 +68,10 @@ python -m textual
 
 Head over to the [Textual documentation](http://textual.textualize.io/) to start building!
 
+## Join us on Discord
+
+Join the Textual developers and community on our [Discord Server](https://discord.gg/Enf6Z3qhVr).
+
 ## Examples
 
 The Textual repository comes with a number of examples you can experiment with or use as a template for your own projects.
@@ -72,12 +88,12 @@ https://user-images.githubusercontent.com/554369/197188237-88d3f7e4-4e5f-40b5-b9
  </details>
 
 
-<details>  
+<details>
   <summary> 📷 Calculator </summary>
   <hr>
-  
+
 This is [calculator.py](https://github.com/Textualize/textual/blob/main/examples/calculator.py) which demonstrates Textual grid layouts.
-  
+
 ![calculator screenshot](https://raw.githubusercontent.com/Textualize/textual/main/imgs/calculator.png)
 </details>
 
@@ -87,7 +103,7 @@ This is [calculator.py](https://github.com/Textualize/textual/blob/main/examples
   <hr>
 
   This is the Stopwatch example from the [tutorial](https://textual.textualize.io/tutorial/).
-  
+
 
 
 https://user-images.githubusercontent.com/554369/197360718-0c834ef5-6285-4d37-85cf-23eed4aa56c5.mov
@@ -102,12 +118,12 @@ https://user-images.githubusercontent.com/554369/197360718-0c834ef5-6285-4d37-85
 
 The `textual` command has a few sub-commands to preview Textual styles.
 
-<details>  
+<details>
   <summary> 🎬 Easing reference </summary>
   <hr>
-  
+
 This is the *easing* reference which demonstrates the easing parameter on animation, with both movement and opacity. You can run it with the following command:
-  
+
 ```bash
 textual easing
 ```
@@ -118,12 +134,12 @@ https://user-images.githubusercontent.com/554369/196157100-352852a6-2b09-4dc8-a8
 
  </details>
 
-<details>  
+<details>
   <summary> 🎬 Borders reference </summary>
   <hr>
-  
+
 This is the borders reference which demonstrates some of the borders styles in Textual. You can run it with the following command:
-  
+
 ```bash
 textual borders
 ```
@@ -131,16 +147,16 @@ textual borders
 
 https://user-images.githubusercontent.com/554369/196158235-4b45fb78-053d-4fd5-b285-e09b4f1c67a8.mov
 
-  
+
 </details>
 
 
-<details>  
+<details>
   <summary> 🎬 Colors reference </summary>
   <hr>
-  
+
 This is a reference for Textual's color design system.
-  
+
 ```bash
 textual colors
 ```
@@ -151,6 +167,5 @@ https://user-images.githubusercontent.com/554369/197357417-2d407aac-8969-44d3-82
 
 
 
-  
-</details>
 
+</details>

docs/FAQ.md

@@ -0,0 +1,335 @@
+---
+hide:
+  - navigation
+---
+
+<!-- Auto-generated by FAQtory -->
+<!-- Do not edit by hand! -->
+
+# Frequently Asked Questions
+
+
+Welcome to the Textual FAQ.
+Here we try and answer any question that comes up frequently.
+If you can't find what you are looking for here, see our other [help](./help.md) channels.
+
+<a name="does-textual-support-images"></a>
+## Does Textual support images?
+
+Textual doesn't have built-in support for images yet, but it is on the [Roadmap](https://textual.textualize.io/roadmap/).
+
+See also the [rich-pixels](https://github.com/darrenburns/rich-pixels) project for a Rich renderable for images that works with Textual.
+
+---
+
+<a name="how-can-i-fix-importerror-cannot-import-name-composeresult-from-textualapp-"></a>
+## How can I fix ImportError cannot import name ComposeResult from textual.app ?
+
+You likely have an older version of Textual. You can install the latest version by adding the `-U` switch which will force pip to upgrade.
+
+The following should do it:
+
+```
+pip install textual-dev -U
+```
+
+---
+
+<a name="how-can-i-select-and-copy-text-in-a-textual-app"></a>
+## How can I select and copy text in a Textual app?
+
+Running a Textual app puts your terminal in to *application mode* which disables clicking and dragging to select text.
+Most terminal emulators offer a modifier key which you can hold while you click and drag to restore the behavior you
+may expect from the command line. The exact modifier key depends on the terminal and platform you are running on.
+
+- **iTerm** Hold the OPTION key.
+- **Gnome Terminal** Hold the SHIFT key.
+- **Windows Terminal** Hold the SHIFT key.
+
+Refer to the documentation for your terminal emulator, if it is not listed above.
+
+---
+
+<a name="how-can-i-set-a-translucent-app-background"></a>
+## How can I set a translucent app background?
+
+Some terminal emulators have a translucent background feature which allows the desktop underneath to be partially visible.
+
+This feature is unlikely to work with Textual, as the translucency effect requires the use of ANSI background colors, which Textual doesn't use.
+Textual uses 16.7 million colors where available which enables consistent colors across all platforms and additional effects which aren't possible with ANSI colors.
+
+For more information on ANSI colors in Textual, see [Why no Ansi Themes?](#why-doesnt-textual-support-ansi-themes).
+
+---
+
+<a name="how-do-i-center-a-widget-in-a-screen"></a>
+## How do I center a widget in a screen?
+
+!!! tip
+
+    See [*How To Center Things*](https://textual.textualize.io/how-to/center-things/) in the
+    Textual documentation for a more comprensive answer to this question.
+
+To center a widget within a container use
+[`align`](https://textual.textualize.io/styles/align/). But remember that
+`align` works on the *children* of a container, it isn't something you use
+on the child you want centered.
+
+For example, here's an app that shows a `Button` in the middle of a
+`Screen`:
+
+```python
+from textual.app import App, ComposeResult
+from textual.widgets import Button
+
+class ButtonApp(App):
+
+    CSS = """
+    Screen {
+        align: center middle;
+    }
+    """
+
+    def compose(self) -> ComposeResult:
+        yield Button("PUSH ME!")
+
+if __name__ == "__main__":
+    ButtonApp().run()
+```
+
+If you use the above on multiple widgets, you'll find they appear to
+"left-align" in the center of the screen, like this:
+
+```
++-----+
+|     |
++-----+
+
++---------+
+|         |
++---------+
+
++---------------+
+|               |
++---------------+
+```
+
+If you want them more like this:
+
+```
+     +-----+
+     |     |
+     +-----+
+
+   +---------+
+   |         |
+   +---------+
+
++---------------+
+|               |
++---------------+
+```
+
+the best approach is to wrap each widget in a [`Center`
+container](https://textual.textualize.io/api/containers/#textual.containers.Center)
+that individually centers it. For example:
+
+```python
+from textual.app import App, ComposeResult
+from textual.containers import Center
+from textual.widgets import Button
+
+class ButtonApp(App):
+
+    CSS = """
+    Screen {
+        align: center middle;
+    }
+    """
+
+    def compose(self) -> ComposeResult:
+        yield Center(Button("PUSH ME!"))
+        yield Center(Button("AND ME!"))
+        yield Center(Button("ALSO PLEASE PUSH ME!"))
+        yield Center(Button("HEY ME ALSO!!"))
+
+if __name__ == "__main__":
+    ButtonApp().run()
+```
+
+---
+
+<a name="how-do-i-fix-workerdeclarationerror"></a>
+## How do I fix WorkerDeclarationError?
+
+Textual version 0.31.0 requires that you set `thread=True` on the `@work` decorator if you want to run a threaded worker.
+
+If you want a threaded worker, you would declare it in the following way:
+
+```python
+@work(thread=True)
+def run_in_background():
+    ...
+```
+
+If you *don't* want a threaded worker, you should make your work function `async`:
+
+```python
+@work()
+async def run_in_background():
+    ...
+```
+
+This change was made because it was too easy to accidentally create a threaded worker, which may produce unexpected results.
+
+---
+
+<a name="how-do-i-pass-arguments-to-an-app"></a>
+## How do I pass arguments to an app?
+
+When creating your `App` class, override `__init__` as you would when
+inheriting normally. For example:
+
+```python
+from textual.app import App, ComposeResult
+from textual.widgets import Static
+
+class Greetings(App[None]):
+
+    def __init__(self, greeting: str="Hello", to_greet: str="World") -> None:
+        self.greeting = greeting
+        self.to_greet = to_greet
+        super().__init__()
+
+    def compose(self) -> ComposeResult:
+        yield Static(f"{self.greeting}, {self.to_greet}")
+```
+
+Then the app can be run, passing in various arguments; for example:
+
+```python
+# Running with default arguments.
+Greetings().run()
+
+# Running with a keyword argument.
+Greetings(to_greet="davep").run()
+
+# Running with both positional arguments.
+Greetings("Well hello", "there").run()
+```
+
+---
+
+<a name="no-widget-called-textlog"></a>
+## No widget called TextLog
+
+The `TextLog` widget was renamed to `RichLog` in Textual 0.32.0.
+You will need to replace all references to `TextLog` in your code, with `RichLog`.
+Most IDEs will have a search and replace function which will help you do this.
+
+Here's how you should import RichLog:
+
+```python
+from textual.widgets import RichLog
+```
+
+---
+
+<a name="why-do-some-key-combinations-never-make-it-to-my-app"></a>
+## Why do some key combinations never make it to my app?
+
+Textual can only ever support key combinations that are passed on by your
+terminal application. Which keys get passed on can differ from terminal to
+terminal, and from operating system to operating system.
+
+Because of this it's best to stick to key combinations that are known to be
+universally-supported; these include the likes of:
+
+- Letters
+- Numbers
+- Numbered function keys (especially F1 through F10)
+- Space
+- Return
+- Arrow, home, end and page keys
+- Control
+- Shift
+
+When [creating bindings for your
+application](https://textual.textualize.io/guide/input/#bindings) we
+recommend picking keys and key combinations from the above.
+
+Keys that aren't normally passed through by terminals include Cmd and Option
+on macOS, and the Windows key on Windows.
+
+If you need to test what [key
+combinations](https://textual.textualize.io/guide/input/#keyboard-input)
+work in different environments you can try them out with `textual keys`.
+
+---
+
+<a name="why-doesn't-textual-look-good-on-macos"></a>
+## Why doesn't Textual look good on macOS?
+
+You may find that the default macOS Terminal.app doesn't render Textual apps (and likely other TUIs) very well, particuarily when it comes to box characters.
+For instance, you may find it displays misaligned blocks and lines like this:
+
+<img width="1042" alt="Screenshot 2023-06-19 at 10 43 02" src="https://github.com/Textualize/textual/assets/554369/e61f3876-3dd1-4ac8-b380-22922c89c7d6">
+
+You can (mostly) fix this by opening settings -> profiles > Text tab, and changing the font settings.
+We have found that Menlo Regular font, with a character spacing of 1 and line spacing of 0.805 produces reasonable results.
+If you want to use another font, you may have to tweak the line spacing until you get good results.
+
+<img width="737" alt="Screenshot 2023-06-19 at 10 44 00" src="https://github.com/Textualize/textual/assets/554369/0a052a93-b1fd-4327-9d33-d954b51a9ad2">
+
+With these changes, Textual apps render more as intended:
+
+<img width="1042" alt="Screenshot 2023-06-19 at 10 43 23" src="https://github.com/Textualize/textual/assets/554369/a0c4aa05-c509-4ac1-b0b8-e68ce4433f70">
+
+Even with this *fix*, Terminal.app has a few limitations.
+It is limited to 256 colors, and can be a little slow compared to more modern alternatives.
+Fortunately there are a number of free terminal emulators for macOS which produces high quality results.
+
+We recommend any of the following terminals:
+
+- [iTerm2](https://iterm2.com/)
+- [Kitty](https://sw.kovidgoyal.net/kitty/)
+- [WezTerm](https://wezfurlong.org/wezterm/)
+
+### Terminal.app colors
+
+<img width="762" alt="Screenshot 2023-06-19 at 11 00 12" src="https://github.com/Textualize/textual/assets/554369/e0555d23-e141-4069-b318-f3965c880208">
+
+### iTerm2 colors
+
+<img width="1002" alt="Screenshot 2023-06-19 at 11 00 25" src="https://github.com/Textualize/textual/assets/554369/9a8cde57-5121-49a7-a2e0-5f6fc871b7a6">
+
+---
+
+<a name="why-doesn't-textual-support-ansi-themes"></a>
+## Why doesn't Textual support ANSI themes?
+
+Textual will not generate escape sequences for the 16 themeable *ANSI* colors.
+
+This is an intentional design decision we took for for the following reasons:
+
+- Not everyone has a carefully chosen ANSI color theme. Color combinations which may look fine on your system, may be unreadable on another machine. There is very little an app author or Textual can do to resolve this. Asking users to simply pick a better theme is not a good solution, since not all users will know how.
+- ANSI colors can't be manipulated in the way Textual can do with other colors. Textual can blend colors and produce light and dark shades from an original color, which is used to create more readable text and user interfaces. Color blending will also be used to power future accessibility features.
+
+Textual has a design system which guarantees apps will be readable on all platforms and terminals, and produces better results than ANSI colors.
+
+There is currently a light and dark version of the design system, but more are planned. It will also be possible for users to customize the source colors on a per-app or per-system basis. This means that in the future you will be able to modify the core colors to blend in with your chosen terminal theme.
+
+---
+
+<a name="why-doesn't-the-`datatable`-scroll-programmatically"></a>
+## Why doesn't the `DataTable` scroll programmatically?
+
+If scrolling in your `DataTable` is _apparently_ broken, it may be because your `DataTable` is using the default value of `height: auto`.
+This means that the table will be sized to fit its rows without scrolling, which may cause the *container* (typically the screen) to scroll.
+If you would like the table itself to scroll, set the height to something other than `auto`, like `100%`.
+
+**NOTE:** As of Textual v0.31.0 the `max-height` of a `DataTable` is set to `100%`, this will mean that the above is no longer the default experience.
+
+---
+
+Generated by [FAQtory](https://github.com/willmcgugan/faqtory)

docs/_templates/python/material/_base/class.html

@@ -0,0 +1,114 @@
+{{ log.debug("Rendering " + class.path) }}
+
+<div class="doc doc-object doc-class">
+{% with html_id = class.path %}
+
+  {% if root %}
+    {% set show_full_path = config.show_root_full_path %}
+    {% set root_members = True %}
+  {% elif root_members %}
+    {% set show_full_path = config.show_root_members_full_path or config.show_object_full_path %}
+    {% set root_members = False %}
+  {% else %}
+    {% set show_full_path = config.show_object_full_path %}
+  {% endif %}
+
+
+
+  {% if 1 %}
+
+    {% filter heading(heading_level,
+        role="class",
+        id=html_id,
+        class="doc doc-heading",
+        toc_label=class.name) %}
+
+      {% if config.separate_signature %}
+        <span class="doc doc-object-name doc-class-name">{% if show_full_path %}{{ class.path }}{% else %}{{ class.name }}{% endif %}</span>
+      {% elif config.merge_init_into_class and "__init__" in class.members -%}
+        {%- with function = class.members["__init__"] -%}
+          {%- filter highlight(language="python", inline=True) -%}
+            {% if show_full_path %}{{ class.path }}{% else %}{{ class.name }}{% endif %}
+            {%- include "signature.html" with context -%}
+          {%- endfilter -%}
+        {%- endwith -%}
+      {% else %}
+        <code>{% if show_full_path %}{{ class.path }}{% else %}{{ class.name }}{% endif %}</code>
+      {% endif %}
+
+      {% with labels = ['class'] %}
+        {% include "labels.html" with context %}
+      {% endwith %}
+
+    {% endfilter %}
+
+    {% if config.separate_signature and config.merge_init_into_class %}
+      {% if "__init__" in class.members %}
+        {% with function = class.members["__init__"] %}
+          {% filter highlight(language="python", inline=False) -%}
+            def {% filter format_signature(config.line_length) %}
+__init__{% include "signature.html" with context %}
+            {% endfilter %}:
+          {% endfilter %}
+        {% endwith %}
+      {% endif %}
+    {% endif %}
+
+  {% else %}
+    {% if config.show_root_toc_entry %}
+      {% filter heading(heading_level,
+          role="class",
+          id=html_id,
+          toc_label=class.path if config.show_root_full_path else class.name,
+          hidden=True) %}
+      {% endfilter %}
+    {% endif %}
+    {% set heading_level = heading_level - 1 %}
+  {% endif %}
+
+  <div class="doc doc-contents {% if root %}first{% endif %}">
+    {% if config.show_bases and class.bases %}
+      <p class="doc doc-class-bases">
+        Bases: {% for expression in class.bases -%}
+          <code>{% include "expression.html" with context %}</code>{% if not loop.last %}, {% endif %}
+        {% endfor -%}
+      </p>
+    {% endif %}
+
+    {% with docstring_sections = class.docstring.parsed %}
+      {% include "docstring.html" with context %}
+    {% endwith %}
+
+    {% if config.merge_init_into_class %}
+      {% if "__init__" in class.members and class.members["__init__"].has_docstring %}
+        {% with docstring_sections = class.members["__init__"].docstring.parsed %}
+          {% include "docstring.html" with context %}
+        {% endwith %}
+      {% endif %}
+    {% endif %}
+
+    {% if config.show_source %}
+      {% if config.merge_init_into_class %}
+        {% if "__init__" in class.members and class.members["__init__"].source %}
+          <details class="quote">
+            <summary>Source code in <code>{{ class.relative_filepath }}</code></summary>
+            {{ class.members["__init__"].source|highlight(language="python", linestart=class.members["__init__"].lineno, linenums=True) }}
+          </details>
+        {% endif %}
+      {% elif class.source %}
+        <details class="quote">
+          <summary>Source code in <code>{{ class.relative_filepath }}</code></summary>
+          {{ class.source|highlight(language="python", linestart=class.lineno, linenums=True) }}
+        </details>
+      {% endif %}
+    {% endif %}
+
+    {% with obj = class %}
+      {% set root = False %}
+      {% set heading_level = heading_level + 1 %}
+      {% include "children.html" with context %}
+    {% endwith %}
+  </div>
+
+{% endwith %}
+</div>

docs/_templates/python/material/_base/docstring/admonition.html

@@ -0,0 +1,5 @@
+{{ log.debug("Rendering admonition") }}
+<details class="{{ section.value.kind }}" open>
+  <summary>{{ section.title|convert_markdown(heading_level, html_id, strip_paragraph=True) }}</summary>
+  {{ section.value.contents|convert_markdown(heading_level, html_id) }}
+</details>

docs/_templates/python/material/_base/docstring/attributes.html

@@ -0,0 +1,78 @@
+{{ log.debug("Rendering attributes section") }}
+{% if config.docstring_section_style == "table" %}
+  {% block table_style %}
+  <h5>{{ section.title or "Attributes" }}</h5>
+  <table>
+    <thead>
+      <tr>
+        <th>Name</th>
+        <th>Type</th>
+        <th>Description</th>
+      </tr>
+    </thead>
+    <tbody>
+      {% for attribute in section.value %}
+        <tr>
+          <td><code>{{ attribute.name }}</code></td>
+          <td>
+            {% if attribute.annotation %}
+              {% with expression = attribute.annotation %}
+                <code>{% include "expression.html" with context %}</code>
+              {% endwith %}
+            {% endif %}
+          </td>
+          <td>{{ attribute.description|convert_markdown(heading_level, html_id) }}</td>
+        </tr>
+      {% endfor %}
+    </tbody>
+  </table>
+  {% endblock table_style %}
+{% elif config.docstring_section_style == "list" %}
+  {% block list_style %}
+  <p>{{ section.title or "Attributes:" }}</p>
+  <ul>
+    {% for attribute in section.value %}
+      <li class="field-body">
+        <b>{{ attribute.name }}</b>
+        {% if attribute.annotation %}
+          {% with expression = attribute.annotation %}
+            (<code>{% include "expression.html" with context %}</code>)
+          {% endwith %}
+        {% endif %}
+        – {{ attribute.description|convert_markdown(heading_level, html_id) }}
+      </li>
+    {% endfor %}
+  </ul>
+  {% endblock list_style %}
+{% elif config.docstring_section_style == "spacy" %}
+  {% block spacy_style %}
+  <table>
+    <thead>
+      <tr>
+        <th><b>{{ (section.title or "ATTRIBUTE").rstrip(":").upper() }}</b></th>
+        <th><b>DESCRIPTION</b></th>
+      </tr>
+    </thead>
+    <tbody>
+      {% for attribute in section.value %}
+        <tr>
+          <td><code>{{ attribute.name }}</code></td>
+          <td class="doc-attribute-details">
+            {{ attribute.description|convert_markdown(heading_level, html_id) }}
+            <p>
+              {% if attribute.annotation %}
+                <span class="doc-attribute-annotation">
+                  <b>TYPE:</b>
+                  {% with expression = attribute.annotation %}
+                    <code>{% include "expression.html" with context %}</code>
+                  {% endwith %}
+                </span>
+              {% endif %}
+            </p>
+          </td>
+        </tr>
+      {% endfor %}
+    </tbody>
+  </table>
+  {% endblock spacy_style %}
+{% endif %}

docs/_templates/python/material/_base/docstring/parameters.html

@@ -0,0 +1,96 @@
+{{ log.debug("Rendering parameters section") }}
+{% if config.docstring_section_style == "table" %}
+  {% block table_style %}
+  <h5>{{ section.title or "Parameters" }}</h5>
+  <table>
+    <thead>
+      <tr>
+        <th>Parameter</th>
+        <th>Default</th>
+        <th>Description</th>
+      </tr>
+    </thead>
+    <tbody>
+      {% for parameter in section.value %}
+        <tr>
+          <td>
+            <strong><code>{{ parameter.name }}</code></strong>
+            <br>
+            {% if parameter.annotation %}
+              {% with expression = parameter.annotation %}
+                <code>{% include "expression.html" with context %}</code>
+              {% endwith %}
+            {% endif %}
+          </td>
+          <td>
+            {% if parameter.default %}
+            {% with expression = parameter.default %}
+            <code>{% include "expression.html" with context %}</code>
+            {% endwith %}
+            {% else %}
+            <em>required</em>
+            {% endif %}
+          </td>
+          <td>{{ parameter.description|convert_markdown(heading_level, html_id) }}</td>
+        </tr>
+      {% endfor %}
+    </tbody>
+  </table>
+  {% endblock table_style %}
+{% elif config.docstring_section_style == "list" %}
+  {% block list_style %}
+  <p>{{ section.title or "Parameters:" }}</p>
+  <ul>
+    {% for parameter in section.value %}
+      <li class="field-body">
+        <b>{{ parameter.name }}</b>
+        {% if parameter.annotation %}
+          {% with expression = parameter.annotation %}
+            (<code>{% include "expression.html" with context %}</code>)
+          {% endwith %}
+        {% endif %}
+        – {{ parameter.description|convert_markdown(heading_level, html_id) }}
+      </li>
+    {% endfor %}
+  </ul>
+  {% endblock list_style %}
+{% elif config.docstring_section_style == "spacy" %}
+  {% block spacy_style %}
+  <table>
+    <thead>
+      <tr>
+        <th><b>{{ (section.title or "PARAMETER").rstrip(":").upper() }}</b></th>
+        <th><b>DESCRIPTION</b></th>
+      </tr>
+    </thead>
+    <tbody>
+      {% for parameter in section.value %}
+        <tr>
+          <td><code>{{ parameter.name }}</code></td>
+          <td class="doc-param-details">
+            {{ parameter.description|convert_markdown(heading_level, html_id) }}
+            <p>
+              {% if parameter.annotation %}
+                <span class="doc-param-annotation">
+                  <b>TYPE:</b>
+                  {% with expression = parameter.annotation %}
+                    <code>{% include "expression.html" with context %}</code>
+                  {% endwith %}
+                </span>
+              {% endif %}
+              {% if parameter.default %}
+                <span class="doc-param-default">
+                  <b>DEFAULT:</b>
+                  {% with expression = parameter.default %}
+                    <code>{% include "expression.html" with context %}</code>
+                  {% endwith %}
+                </span>
+              {% endif %}
+            </p>
+          </td>
+        </tr>
+      {% endfor %}
+    </tbody>
+  </table>
+  {% endblock spacy_style %}
+{% endif %}

docs/_templates/python/material/_base/docstring/raises.html

@@ -0,0 +1,72 @@
+{{ log.debug("Rendering raises section") }}
+{% if config.docstring_section_style == "table" %}
+  {% block table_style %}
+  <h5>{{ section.title or "Raises" }}</h5>
+  <table>
+    <thead>
+      <tr>
+        <th>Type</th>
+        <th>Description</th>
+      </tr>
+    </thead>
+    <tbody>
+      {% for raises in section.value %}
+        <tr>
+          <td>
+            {% if raises.annotation %}
+              {% with expression = raises.annotation %}
+                <code>{% include "expression.html" with context %}</code>
+              {% endwith %}
+            {% endif %}
+          </td>
+          <td>{{ raises.description|convert_markdown(heading_level, html_id) }}</td>
+        </tr>
+      {% endfor %}
+    </tbody>
+  </table>
+  {% endblock table_style %}
+{% elif config.docstring_section_style == "list" %}
+  {% block list_style %}
+  <p>{{ section.title or "Raises:" }}</p>
+  <ul>
+    {% for raises in section.value %}
+      <li class="field-body">
+        {% if raises.annotation %}
+          {% with expression = raises.annotation %}
+            <code>{% include "expression.html" with context %}</code>
+          {% endwith %}
+          –
+        {% endif %}
+        {{ raises.description|convert_markdown(heading_level, html_id) }}
+      </li>
+    {% endfor %}
+  </ul>
+  {% endblock list_style %}
+{% elif config.docstring_section_style == "spacy" %}
+  {% block spacy_style %}
+  <table>
+    <thead>
+      <tr>
+        <th><b>{{ (section.title or "RAISES").rstrip(":").upper() }}</b></th>
+        <th><b>DESCRIPTION</b></th>
+      </tr>
+    </thead>
+    <tbody>
+      {% for raises in section.value %}
+        <tr>
+          <td>
+            <span class="doc-raises-annotation">
+              {% with expression = raises.annotation %}
+                <code>{% include "expression.html" with context %}</code>
+              {% endwith %}
+            </span>
+          </td>
+          <td class="doc-raises-details">
+            {{ raises.description|convert_markdown(heading_level, html_id) }}
+          </td>
+        </tr>
+      {% endfor %}
+    </tbody>
+  </table>
+  {% endblock spacy_style %}
+{% endif %}

docs/_templates/python/material/_base/docstring/returns.html

@@ -0,0 +1,91 @@
+{{ log.debug("Rendering returns section") }}
+{% if config.docstring_section_style == "table" %}
+  {% block table_style %}
+  {% set name_column = section.value|selectattr("name")|any %}
+  <h5>{{ section.title or "Returns" }}</h5>
+  <table>
+    <thead>
+      <tr>
+        {% if name_column %}<th>Name</th>{% endif %}
+        <th>Type</th>
+        <th>Description</th>
+      </tr>
+    </thead>
+    <tbody>
+      {% for returns in section.value %}
+        <tr>
+          {% if name_column %}<td>{% if returns.name %}<code>{{ returns.name }}</code>{% endif %}</td>{% endif %}
+          <td>
+            {% if returns.annotation %}
+              {% with expression = returns.annotation %}
+                <code>{% include "expression.html" with context %}</code>
+              {% endwith %}
+            {% endif %}
+          </td>
+          <td>{{ returns.description|convert_markdown(heading_level, html_id) }}</td>
+        </tr>
+      {% endfor %}
+    </tbody>
+  </table>
+  {% endblock table_style %}
+{% elif config.docstring_section_style == "list" %}
+  {% block list_style %}
+  <p>{{ section.title or "Returns:" }}</p>
+  <ul>
+    {% for returns in section.value %}
+      <li class="field-body">
+        {% if returns.name %}<b>{{ returns.name }}</b>{% endif %}
+        {% if returns.annotation %}
+          {% with expression = returns.annotation %}
+            {% if returns.name %}({% endif %}
+            <code>{% include "expression.html" with context %}</code>
+            {% if returns.name %}){% endif %}
+          {% endwith %}
+        {% endif %}
+        – {{ returns.description|convert_markdown(heading_level, html_id) }}
+      </li>
+    {% endfor %}
+  </ul>
+  {% endblock list_style %}
+{% elif config.docstring_section_style == "spacy" %}
+  {% block spacy_style %}
+  <table>
+    <thead>
+      <tr>
+        <th><b>{{ (section.title or "RETURNS").rstrip(":").upper() }}</b></th>
+        <th><b>DESCRIPTION</b></th>
+      </tr>
+    </thead>
+    <tbody>
+      {% for returns in section.value %}
+        <tr>
+          <td>
+            {% if returns.name %}
+              <code>{{ returns.name }}</code>
+            {% elif returns.annotation %}
+              <span class="doc-returns-annotation">
+                {% with expression = returns.annotation %}
+                  <code>{% include "expression.html" with context %}</code>
+                {% endwith %}
+              </span>
+            {% endif %}
+          </td>
+          <td class="doc-returns-details">
+            {{ returns.description|convert_markdown(heading_level, html_id) }}
+            {% if returns.name and returns.annotation %}
+              <p>
+                <span class="doc-returns-annotation">
+                  <b>TYPE:</b>
+                  {% with expression = returns.annotation %}
+                    <code>{% include "expression.html" with context %}</code>
+                  {% endwith %}
+                </span>
+              </p>
+            {% endif %}
+          </td>
+        </tr>
+      {% endfor %}
+    </tbody>
+  </table>
+  {% endblock spacy_style %}
+{% endif %}

docs/_templates/python/material/_base/function.html

@@ -0,0 +1,73 @@
+{{ log.debug("Rendering " + function.path) }}
+
+<div class="doc doc-object doc-function">
+{% with html_id = function.path %}
+
+  {% if root %}
+    {% set show_full_path = config.show_root_full_path %}
+    {% set root_members = True %}
+  {% elif root_members %}
+    {% set show_full_path = config.show_root_members_full_path or config.show_object_full_path %}
+    {% set root_members = False %}
+  {% else %}
+    {% set show_full_path = config.show_object_full_path %}
+  {% endif %}
+
+  {% if not root or config.show_root_heading %}
+
+    {% filter heading(heading_level,
+        role="function",
+        id=html_id,
+        class="doc doc-heading",
+        toc_label=function.name ~ "()") %}
+
+      {% if config.separate_signature %}
+        <span class="doc doc-object-name doc-function-name">{% if show_full_path %}{{ function.path }}{% else %}{{ function.name }}{% endif %}</span>
+      {% else %}
+        {% filter highlight(language="python", inline=True) %}
+          {% if show_full_path %}{{ function.path }}{% else %}{{ function.name }}{% endif %}
+          {% include "signature.html" with context %}
+        {% endfilter %}
+      {% endif %}
+      {% with labels = function.labels or [(function.parameters._parameters_list and function.parameters._parameters_list[0].name == 'self') and 'method' or 'function'] %}
+        {% include "labels.html" with context %}
+      {% endwith %}
+
+    {% endfilter %}
+
+    {% if config.separate_signature %}
+      {% filter highlight(language="python", inline=False) %}
+def {% filter format_signature(config.line_length) %}
+          {% if show_full_path %}{{ function.path }}{% else %}{{ function.name }}{% endif %}
+          {% include "signature.html" with context %}
+        {% endfilter %}:
+      {% endfilter %}
+    {% endif %}
+
+  {% else %}
+    {% if config.show_root_toc_entry %}
+      {% filter heading(heading_level,
+          role="function",
+          id=html_id,
+          toc_label=function.path if config.show_root_full_path else function.name,
+          hidden=True) %}
+      {% endfilter %}
+    {% endif %}
+    {% set heading_level = heading_level - 1 %}
+  {% endif %}
+
+  <div class="doc doc-contents {% if root %}first{% endif %}">
+    {% with docstring_sections = function.docstring.parsed %}
+      {% include "docstring.html" with context %}
+    {% endwith %}
+
+    {% if config.show_source and function.source %}
+      <details class="quote">
+        <summary>Source code in <code>{{ function.relative_filepath }}</code></summary>
+        {{ function.source|highlight(language="python", linestart=function.lineno, linenums=True) }}
+      </details>
+    {% endif %}
+  </div>
+
+{% endwith %}
+</div>

docs/_templates/python/material/_base/signature.html

@@ -0,0 +1,48 @@
+{%- if config.show_signature -%}
+  {{ log.debug("Rendering signature") }}
+  {%- with -%}
+
+    {%- set ns = namespace(has_pos_only=False, render_pos_only_separator=True, render_kw_only_separator=True, equal="=") -%}
+
+    {%- if config.show_signature_annotations -%}
+      {%- set ns.equal = " = " -%}
+    {%- endif -%}
+
+    (
+      {%- for parameter in function.parameters -%}
+        {%- if 1 -%}
+
+          {%- if parameter.kind.value == "positional-only" -%}
+            {%- set ns.has_pos_only = True -%}
+          {%- else -%}
+            {%- if ns.has_pos_only and ns.render_pos_only_separator -%}
+              {%- set ns.render_pos_only_separator = False %}/, {% endif -%}
+          {%- if parameter.kind.value == "keyword-only" -%}
+              {%- if ns.render_kw_only_separator -%}
+                {%- set ns.render_kw_only_separator = False %}*, {% endif -%}
+            {%- endif -%}
+          {%- endif -%}
+
+          {%- if config.show_signature_annotations and parameter.annotation is not none -%}
+            {%- set annotation = ": " + parameter.annotation|safe -%}
+          {%- endif -%}
+
+          {%- if parameter.default is not none and parameter.kind.value != "variadic positional" and parameter.kind.value != "variadic keyword" -%}
+            {%- set default = ns.equal + parameter.default|safe -%}
+          {%- endif -%}
+
+          {%- if parameter.kind.value == "variadic positional" -%}
+            {%- set ns.render_kw_only_separator = False -%}
+          {%- endif -%}
+
+          {% if parameter.kind.value == "variadic positional" %}*{% elif parameter.kind.value == "variadic keyword" %}**{% endif -%}
+          {{ parameter.name }}{{ annotation }}{{ default }}
+          {%- if not loop.last %}, {% endif -%}
+
+        {%- endif -%}
+      {%- endfor -%}
+    )
+    {%- if config.show_signature_annotations and function.annotation %} -> {{ function.annotation|safe }}{%- endif -%}
+
+  {%- endwith -%}
+{%- endif -%}

docs/_templates/python/material/attribute.html

@@ -1,67 +0,0 @@
-{{ log.debug("Rendering " + attribute.path) }}
-
-<div class="doc doc-object doc-attribute">
-{% with html_id = attribute.path %}
-
-  {% if root %}
-    {% set show_full_path = config.show_root_full_path %}
-    {% set root_members = True %}
-  {% elif root_members %}
-    {% set show_full_path = config.show_root_members_full_path or config.show_object_full_path %}
-    {% set root_members = False %}
-  {% else %}
-    {% set show_full_path = config.show_object_full_path %}
-  {% endif %}
-
-  {% if not root or config.show_root_heading %}
-
-    {% filter heading(heading_level,
-        role="data" if attribute.parent.kind.value == "module" else "attr",
-        id=html_id,
-        class="doc doc-heading",
-        toc_label=attribute.name) %}
-
-      {% if config.separate_signature %}
-        <span class="doc doc-object-name doc-attribute-name">{% if show_full_path %}{{ attribute.path }}{% else %}{{ attribute.name }}{% endif %}</span>
-      {% else %}
-        {% filter highlight(language="python", inline=True) %}
-          {% if show_full_path %}{{ attribute.path }}{% else %}{{ attribute.name }}{% endif %}
-          {% if attribute.annotation %}: {{ attribute.annotation }}{% endif %}
-        {% endfilter %}
-      {% endif %}
-
-      {% with labels = attribute.labels %}
-        {% include "labels.html" with context %}
-      {% endwith %}
-
-    {% endfilter %}
-
-    {% if config.separate_signature %}
-      {% filter highlight(language="python", inline=False) %}
-        {% filter format_code(config.line_length) %}
-          {% if show_full_path %}{{ attribute.path }}{% else %}{{ attribute.name }}{% endif %}
-          {% if attribute.annotation %}: {{ attribute.annotation|safe }}{% endif %}
-        {% endfilter %}
-      {% endfilter %}
-    {% endif %}
-
-  {% else %}
-    {% if config.show_root_toc_entry %}
-      {% filter heading(heading_level,
-          role="data" if attribute.parent.kind.value == "module" else "attr",
-          id=html_id,
-          toc_label=attribute.path if config.show_root_full_path else attribute.name,
-          hidden=True) %}
-      {% endfilter %}
-    {% endif %}
-    {% set heading_level = heading_level - 1 %}
-  {% endif %}
-
-  <div class="doc doc-contents {% if root %}first{% endif %}">
-    {% with docstring_sections = attribute.docstring.parsed %}
-      {% include "docstring.html" with context %}
-    {% endwith %}
-  </div>
-
-{% endwith %}
-</div>

docs/api/app.md

@@ -1 +1,5 @@
 ::: textual.app
+    options:
+        filters:
+          - "!^_"
+          - "^__init__$"

docs/api/button.md

@@ -1,3 +0,0 @@
-::: textual.widgets.Button
-::: textual.widgets._button.ButtonVariant
-::: textual.widgets._button.InvalidButtonVariant

docs/api/checkbox.md

@@ -1 +0,0 @@
-::: textual.widgets.Checkbox

docs/api/command.md

@@ -0,0 +1 @@
+::: textual.command

docs/api/data_table.md

@@ -1 +0,0 @@
-::: textual.widgets.DataTable

docs/api/directory_tree.md

@@ -1 +0,0 @@
-::: textual.widgets.DirectoryTree

docs/api/errors.md

@@ -0,0 +1 @@
+::: textual.errors

docs/api/filter.md

@@ -0,0 +1 @@
+::: textual.filter

docs/api/footer.md

@@ -1 +0,0 @@
-::: textual.widgets.Footer

docs/api/fuzzy_matcher.md

@@ -0,0 +1 @@
+::: textual.fuzzy

docs/api/header.md

@@ -1 +0,0 @@
-::: textual.widgets.Header

docs/api/input.md

@@ -1 +0,0 @@
-::: textual.widgets.Input

docs/api/label.md

@@ -1 +0,0 @@
-::: textual.widgets.Label

docs/api/list_item.md

@@ -1 +0,0 @@
-::: textual.widgets.ListItem

docs/api/list_view.md

@@ -1 +0,0 @@
-::: textual.widgets.ListView

docs/api/loading_indicator.md

@@ -1 +0,0 @@
-::: textual.widgets.LoadingIndicator

docs/api/logger.md

@@ -0,0 +1,5 @@
+# Logger
+
+A [logger class](/guide/devtools/#logging-handler) that logs to the Textual [console](/guide/devtools#console).
+
+::: textual.Logger

docs/api/logging.md

@@ -0,0 +1 @@
+::: textual.logging

docs/api/map_geometry.md

@@ -0,0 +1,3 @@
+A data structure returned by [screen.find_widget][textual.screen.Screen.find_widget].
+
+::: textual._compositor.MapGeometry

docs/api/markdown.md

@@ -1 +0,0 @@
-::: textual.widgets.Markdown

docs/api/markdown_viewer.md

@@ -1 +0,0 @@
-::: textual.widgets.MarkdownViewer

docs/api/message_pump.md

@@ -1,5 +1 @@
-A message pump is a class that processes messages.
-
-It is a base class for the `App`, `Screen`, and `Widget` classes.
-
 ::: textual.message_pump

docs/api/on.md

@@ -0,0 +1,3 @@
+# On
+
+::: textual.on

docs/api/placeholder.md

@@ -1,2 +0,0 @@
-::: textual.widgets.Placeholder
-::: textual.widgets._placeholder.PlaceholderVariant

docs/api/radiobutton.md

@@ -1 +0,0 @@
-::: textual.widgets.RadioButton

docs/api/radioset.md

@@ -1 +0,0 @@
-::: textual.widgets.RadioSet

docs/api/scrollbar.md

@@ -0,0 +1 @@
+::: textual.scrollbar

docs/api/static.md

@@ -1 +0,0 @@
-::: textual.widgets.Static

docs/api/suggester.md

@@ -0,0 +1 @@
+::: textual.suggester

docs/api/switch.md

@@ -1 +0,0 @@
-::: textual.widgets.Switch

docs/api/system_commands_source.md

@@ -0,0 +1 @@
+::: textual._system_commands

docs/api/tabs.md

@@ -1,2 +0,0 @@
-::: textual.widgets.Tab
-::: textual.widgets.Tabs

docs/api/text_log.md

@@ -1 +0,0 @@
-::: textual.widgets.TextLog

docs/api/toggle_button.md

@@ -1 +0,0 @@
-::: textual.widgets._toggle_button.ToggleButton

docs/api/tree.md

@@ -1,4 +0,0 @@
-::: textual.widgets.Tree
-::: textual.widgets._tree.TreeNode
-::: textual.widgets._tree.NodeID
-::: textual.widgets._tree.TreeDataType

docs/api/types.md

@@ -0,0 +1 @@
+::: textual.types

docs/api/validation.md

@@ -0,0 +1 @@
+::: textual.validation

docs/api/welcome.md

@@ -1 +0,0 @@
-::: textual.widgets.Welcome

docs/api/widget.md

@@ -1 +1,5 @@
 ::: textual.widget
+    options:
+        filters:
+          - "!^_"
+          - "^__init__$"

docs/api/work.md

@@ -0,0 +1,2 @@
+
+::: textual.work

docs/api/worker.md

@@ -0,0 +1 @@
+::: textual.worker

docs/api/worker_manager.md

@@ -0,0 +1 @@
+::: textual._worker_manager

docs/blog/.authors.yml

@@ -1,16 +1,17 @@
-willmcgugan:
-  name: Will McGugan
-  description: CEO / code-monkey
-  avatar: https://github.com/willmcgugan.png
-darrenburns:
-  name: Darren Burns
-  description: Code-monkey
-  avatar: https://github.com/darrenburns.png
-davep:
-  name: Dave Pearson
-  description: Code-monkey
-  avatar: https://github.com/davep.png
-rodrigo:
-  name: Rodrigo Girão Serrão
-  description: Code-monkey
-  avatar: https://github.com/rodrigogiraoserrao.png
+authors:
+  willmcgugan:
+    name: Will McGugan
+    description: CEO / code-monkey
+    avatar: https://github.com/willmcgugan.png
+  darrenburns:
+    name: Darren Burns
+    description: Code-monkey
+    avatar: https://github.com/darrenburns.png
+  davep:
+    name: Dave Pearson
+    description: Code-monkey
+    avatar: https://github.com/davep.png
+  rodrigo:
+    name: Rodrigo Girão Serrão
+    description: Code-monkey
+    avatar: https://github.com/rodrigogiraoserrao.png

docs/blog/images/gen_inspect.py

@@ -0,0 +1,17 @@
+from rich import inspect
+from rich.console import Console
+
+c = Console(record=True, width=110)
+
+f = open("foo.txt", "w")
+
+inspect(f, console=c)
+c.save_svg("inspect1.svg")
+
+
+inspect(f, console=c, methods=True)
+c.save_svg("inspect2.svg")
+
+
+inspect(f, console=c, methods=True, help=True)
+c.save_svg("inspect3.svg")

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+</text><text class="terminal-1452477714-r1" x="0" y="605.6" textLength="12.2" clip-path="url(#terminal-1452477714-line-24)">│</text><text class="terminal-1452477714-r9" x="85.4" y="605.6" textLength="109.8" clip-path="url(#terminal-1452477714-line-24)">readlines</text><text class="terminal-1452477714-r4" x="195.2" y="605.6" textLength="24.4" clip-path="url(#terminal-1452477714-line-24)">&#160;=</text><text class="terminal-1452477714-r12" x="231.8" y="605.6" textLength="48.8" clip-path="url(#terminal-1452477714-line-24)">def&#160;</text><text class="terminal-1452477714-r13" x="280.6" y="605.6" textLength="109.8" clip-path="url(#terminal-1452477714-line-24)">readlines</text><text class="terminal-1452477714-r7" x="390.4" y="605.6" textLength="12.2" clip-path="url(#terminal-1452477714-line-24)">(</text><text class="terminal-1452477714-r8" x="402.6" y="605.6" textLength="48.8" clip-path="url(#terminal-1452477714-line-24)">hint</text><text class="terminal-1452477714-r4" x="451.4" y="605.6" textLength="12.2" clip-path="url(#terminal-1452477714-line-24)">=</text><text class="terminal-1452477714-r16" x="463.6" y="605.6" textLength="24.4" clip-path="url(#terminal-1452477714-line-24)">-1</text><text class="terminal-1452477714-r4" x="488" y="605.6" textLength="24.4" clip-path="url(#terminal-1452477714-line-24)">,&#160;</text><text class="terminal-1452477714-r17" x="512.4" y="605.6" textLength="12.2" clip-path="url(#terminal-1452477714-line-24)">/</text><text class="terminal-1452477714-r7" x="524.6" y="605.6" textLength="12.2" clip-path="url(#terminal-1452477714-line-24)">)</text><text class="terminal-1452477714-r4" x="536.8" y="605.6" textLength="12.2" clip-path="url(#terminal-1452477714-line-24)">:</text><text class="terminal-1452477714-r14" x="561.2" y="605.6" textLength="475.8" clip-path="url(#terminal-1452477714-line-24)">Return&#160;a&#160;list&#160;of&#160;lines&#160;from&#160;the&#160;stream.</text><text class="terminal-1452477714-r1" x="1329.8" y="605.6" textLength="12.2" clip-path="url(#terminal-1452477714-line-24)">│</text><text class="terminal-1452477714-r4" x="1342" y="605.6" textLength="12.2" clip-path="url(#terminal-1452477714-line-24)">
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+</text><text class="terminal-1452477714-r1" x="0" y="678.8" textLength="12.2" clip-path="url(#terminal-1452477714-line-27)">│</text><text class="terminal-1452477714-r9" x="146.4" y="678.8" textLength="48.8" clip-path="url(#terminal-1452477714-line-27)">seek</text><text class="terminal-1452477714-r4" x="195.2" y="678.8" textLength="24.4" clip-path="url(#terminal-1452477714-line-27)">&#160;=</text><text class="terminal-1452477714-r12" x="231.8" y="678.8" textLength="48.8" clip-path="url(#terminal-1452477714-line-27)">def&#160;</text><text class="terminal-1452477714-r13" x="280.6" y="678.8" textLength="48.8" clip-path="url(#terminal-1452477714-line-27)">seek</text><text class="terminal-1452477714-r7" x="329.4" y="678.8" textLength="12.2" clip-path="url(#terminal-1452477714-line-27)">(</text><text class="terminal-1452477714-r4" x="341.6" y="678.8" textLength="97.6" clip-path="url(#terminal-1452477714-line-27)">cookie,&#160;</text><text class="terminal-1452477714-r8" x="439.2" y="678.8" textLength="73.2" clip-path="url(#terminal-1452477714-line-27)">whence</text><text class="terminal-1452477714-r4" x="512.4" y="678.8" textLength="12.2" clip-path="url(#terminal-1452477714-line-27)">=</text><text class="terminal-1452477714-r16" x="524.6" y="678.8" textLength="12.2" clip-path="url(#terminal-1452477714-line-27)">0</text><text class="terminal-1452477714-r4" x="536.8" y="678.8" textLength="24.4" clip-path="url(#terminal-1452477714-line-27)">,&#160;</text><text class="terminal-1452477714-r17" x="561.2" y="678.8" textLength="12.2" clip-path="url(#terminal-1452477714-line-27)">/</text><text class="terminal-1452477714-r7" x="573.4" y="678.8" textLength="12.2" clip-path="url(#terminal-1452477714-line-27)">)</text><text class="terminal-1452477714-r4" x="585.6" y="678.8" textLength="12.2" clip-path="url(#terminal-1452477714-line-27)">:</text><text class="terminal-1452477714-r14" x="610" y="678.8" textLength="280.6" clip-path="url(#terminal-1452477714-line-27)">Change&#160;stream&#160;position.</text><text class="terminal-1452477714-r1" x="1329.8" y="678.8" textLength="12.2" clip-path="url(#terminal-1452477714-line-27)">│</text><text class="terminal-1452477714-r4" x="1342" y="678.8" textLength="12.2" clip-path="url(#terminal-1452477714-line-27)">
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+</text><text class="terminal-1636594121-r1" x="0" y="1386.4" textLength="12.2" clip-path="url(#terminal-1636594121-line-56)">│</text><text class="terminal-1636594121-r13" x="134.2" y="1386.4" textLength="61" clip-path="url(#terminal-1636594121-line-56)">flush</text><text class="terminal-1636594121-r4" x="195.2" y="1386.4" textLength="24.4" clip-path="url(#terminal-1636594121-line-56)">&#160;=</text><text class="terminal-1636594121-r15" x="231.8" y="1386.4" textLength="48.8" clip-path="url(#terminal-1636594121-line-56)">def&#160;</text><text class="terminal-1636594121-r16" x="280.6" y="1386.4" textLength="61" clip-path="url(#terminal-1636594121-line-56)">flush</text><text class="terminal-1636594121-r11" x="341.6" y="1386.4" textLength="12.2" clip-path="url(#terminal-1636594121-line-56)">(</text><text class="terminal-1636594121-r11" x="353.8" y="1386.4" textLength="12.2" clip-path="url(#terminal-1636594121-line-56)">)</text><text class="terminal-1636594121-r4" x="366" y="1386.4" textLength="12.2" clip-path="url(#terminal-1636594121-line-56)">:</text><text class="terminal-1636594121-r1" x="1329.8" y="1386.4" textLength="12.2" clip-path="url(#terminal-1636594121-line-56)">│</text><text class="terminal-1636594121-r4" x="1342" y="1386.4" textLength="12.2" clip-path="url(#terminal-1636594121-line-56)">
+</text><text class="terminal-1636594121-r1" x="0" y="1410.8" textLength="12.2" clip-path="url(#terminal-1636594121-line-57)">│</text><text class="terminal-1636594121-r17" x="231.8" y="1410.8" textLength="427" clip-path="url(#terminal-1636594121-line-57)">Flush&#160;write&#160;buffers,&#160;if&#160;applicable.</text><text class="terminal-1636594121-r1" x="1329.8" y="1410.8" textLength="12.2" clip-path="url(#terminal-1636594121-line-57)">│</text><text class="terminal-1636594121-r4" x="1342" y="1410.8" textLength="12.2" clip-path="url(#terminal-1636594121-line-57)">
+</text><text class="terminal-1636594121-r1" x="0" y="1435.2" textLength="12.2" clip-path="url(#terminal-1636594121-line-58)">│</text><text class="terminal-1636594121-r1" x="1329.8" y="1435.2" textLength="12.2" clip-path="url(#terminal-1636594121-line-58)">│</text><text class="terminal-1636594121-r4" x="1342" y="1435.2" textLength="12.2" clip-path="url(#terminal-1636594121-line-58)">
+</text><text class="terminal-1636594121-r1" x="0" y="1459.6" textLength="12.2" clip-path="url(#terminal-1636594121-line-59)">│</text><text class="terminal-1636594121-r17" x="231.8" y="1459.6" textLength="768.6" clip-path="url(#terminal-1636594121-line-59)">This&#160;is&#160;not&#160;implemented&#160;for&#160;read-only&#160;and&#160;non-blocking&#160;streams.</text><text class="terminal-1636594121-r1" x="1329.8" y="1459.6" textLength="12.2" clip-path="url(#terminal-1636594121-line-59)">│</text><text class="terminal-1636594121-r4" x="1342" y="1459.6" textLength="12.2" clip-path="url(#terminal-1636594121-line-59)">
+</text><text class="terminal-1636594121-r1" x="0" y="1484" textLength="12.2" clip-path="url(#terminal-1636594121-line-60)">│</text><text class="terminal-1636594121-r13" x="122" y="1484" textLength="73.2" clip-path="url(#terminal-1636594121-line-60)">isatty</text><text class="terminal-1636594121-r4" x="195.2" y="1484" textLength="24.4" clip-path="url(#terminal-1636594121-line-60)">&#160;=</text><text class="terminal-1636594121-r15" x="231.8" y="1484" textLength="48.8" clip-path="url(#terminal-1636594121-line-60)">def&#160;</text><text class="terminal-1636594121-r16" x="280.6" y="1484" textLength="73.2" clip-path="url(#terminal-1636594121-line-60)">isatty</text><text class="terminal-1636594121-r11" x="353.8" y="1484" textLength="12.2" clip-path="url(#terminal-1636594121-line-60)">(</text><text class="terminal-1636594121-r11" x="366" y="1484" textLength="12.2" clip-path="url(#terminal-1636594121-line-60)">)</text><text class="terminal-1636594121-r4" x="378.2" y="1484" textLength="12.2" clip-path="url(#terminal-1636594121-line-60)">:</text><text class="terminal-1636594121-r1" x="1329.8" y="1484" textLength="12.2" clip-path="url(#terminal-1636594121-line-60)">│</text><text class="terminal-1636594121-r4" x="1342" y="1484" textLength="12.2" clip-path="url(#terminal-1636594121-line-60)">
+</text><text class="terminal-1636594121-r1" x="0" y="1508.4" textLength="12.2" clip-path="url(#terminal-1636594121-line-61)">│</text><text class="terminal-1636594121-r17" x="231.8" y="1508.4" textLength="317.2" clip-path="url(#terminal-1636594121-line-61)">Return&#160;whether&#160;this&#160;is&#160;an&#160;</text><text class="terminal-1636594121-r18" x="549" y="1508.4" textLength="158.6" clip-path="url(#terminal-1636594121-line-61)">&#x27;interactive&#x27;</text><text class="terminal-1636594121-r17" x="707.6" y="1508.4" textLength="97.6" clip-path="url(#terminal-1636594121-line-61)">&#160;stream.</text><text class="terminal-1636594121-r1" x="1329.8" y="1508.4" textLength="12.2" clip-path="url(#terminal-1636594121-line-61)">│</text><text class="terminal-1636594121-r4" x="1342" y="1508.4" textLength="12.2" clip-path="url(#terminal-1636594121-line-61)">
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+</text><text class="terminal-1636594121-r1" x="0" y="1581.6" textLength="12.2" clip-path="url(#terminal-1636594121-line-64)">│</text><text class="terminal-1636594121-r13" x="146.4" y="1581.6" textLength="48.8" clip-path="url(#terminal-1636594121-line-64)">read</text><text class="terminal-1636594121-r4" x="195.2" y="1581.6" textLength="24.4" clip-path="url(#terminal-1636594121-line-64)">&#160;=</text><text class="terminal-1636594121-r15" x="231.8" y="1581.6" textLength="48.8" clip-path="url(#terminal-1636594121-line-64)">def&#160;</text><text class="terminal-1636594121-r16" x="280.6" y="1581.6" textLength="48.8" clip-path="url(#terminal-1636594121-line-64)">read</text><text class="terminal-1636594121-r11" x="329.4" y="1581.6" textLength="12.2" clip-path="url(#terminal-1636594121-line-64)">(</text><text class="terminal-1636594121-r12" x="341.6" y="1581.6" textLength="48.8" clip-path="url(#terminal-1636594121-line-64)">size</text><text class="terminal-1636594121-r4" x="390.4" y="1581.6" textLength="12.2" clip-path="url(#terminal-1636594121-line-64)">=</text><text class="terminal-1636594121-r8" x="402.6" y="1581.6" textLength="24.4" clip-path="url(#terminal-1636594121-line-64)">-1</text><text class="terminal-1636594121-r4" x="427" y="1581.6" textLength="24.4" clip-path="url(#terminal-1636594121-line-64)">,&#160;</text><text class="terminal-1636594121-r20" x="451.4" y="1581.6" textLength="12.2" clip-path="url(#terminal-1636594121-line-64)">/</text><text class="terminal-1636594121-r11" x="463.6" y="1581.6" textLength="12.2" clip-path="url(#terminal-1636594121-line-64)">)</text><text class="terminal-1636594121-r4" x="475.8" y="1581.6" textLength="12.2" clip-path="url(#terminal-1636594121-line-64)">:</text><text class="terminal-1636594121-r1" x="1329.8" y="1581.6" textLength="12.2" clip-path="url(#terminal-1636594121-line-64)">│</text><text class="terminal-1636594121-r4" x="1342" y="1581.6" textLength="12.2" clip-path="url(#terminal-1636594121-line-64)">
+</text><text class="terminal-1636594121-r1" x="0" y="1606" textLength="12.2" clip-path="url(#terminal-1636594121-line-65)">│</text><text class="terminal-1636594121-r17" x="231.8" y="1606" textLength="463.6" clip-path="url(#terminal-1636594121-line-65)">Read&#160;at&#160;most&#160;n&#160;characters&#160;from&#160;stream.</text><text class="terminal-1636594121-r1" x="1329.8" y="1606" textLength="12.2" clip-path="url(#terminal-1636594121-line-65)">│</text><text class="terminal-1636594121-r4" x="1342" y="1606" textLength="12.2" clip-path="url(#terminal-1636594121-line-65)">
+</text><text class="terminal-1636594121-r1" x="0" y="1630.4" textLength="12.2" clip-path="url(#terminal-1636594121-line-66)">│</text><text class="terminal-1636594121-r1" x="1329.8" y="1630.4" textLength="12.2" clip-path="url(#terminal-1636594121-line-66)">│</text><text class="terminal-1636594121-r4" x="1342" y="1630.4" textLength="12.2" clip-path="url(#terminal-1636594121-line-66)">
+</text><text class="terminal-1636594121-r1" x="0" y="1654.8" textLength="12.2" clip-path="url(#terminal-1636594121-line-67)">│</text><text class="terminal-1636594121-r17" x="231.8" y="1654.8" textLength="841.8" clip-path="url(#terminal-1636594121-line-67)">Read&#160;from&#160;underlying&#160;buffer&#160;until&#160;we&#160;have&#160;n&#160;characters&#160;or&#160;we&#160;hit&#160;EOF.</text><text class="terminal-1636594121-r1" x="1329.8" y="1654.8" textLength="12.2" clip-path="url(#terminal-1636594121-line-67)">│</text><text class="terminal-1636594121-r4" x="1342" y="1654.8" textLength="12.2" clip-path="url(#terminal-1636594121-line-67)">
+</text><text class="terminal-1636594121-r1" x="0" y="1679.2" textLength="12.2" clip-path="url(#terminal-1636594121-line-68)">│</text><text class="terminal-1636594121-r17" x="231.8" y="1679.2" textLength="536.8" clip-path="url(#terminal-1636594121-line-68)">If&#160;n&#160;is&#160;negative&#160;or&#160;omitted,&#160;read&#160;until&#160;EOF.</text><text class="terminal-1636594121-r1" x="1329.8" y="1679.2" textLength="12.2" clip-path="url(#terminal-1636594121-line-68)">│</text><text class="terminal-1636594121-r4" x="1342" y="1679.2" textLength="12.2" clip-path="url(#terminal-1636594121-line-68)">
+</text><text class="terminal-1636594121-r1" x="0" y="1703.6" textLength="12.2" clip-path="url(#terminal-1636594121-line-69)">│</text><text class="terminal-1636594121-r13" x="97.6" y="1703.6" textLength="97.6" clip-path="url(#terminal-1636594121-line-69)">readable</text><text class="terminal-1636594121-r4" x="195.2" y="1703.6" textLength="24.4" clip-path="url(#terminal-1636594121-line-69)">&#160;=</text><text class="terminal-1636594121-r15" x="231.8" y="1703.6" textLength="48.8" clip-path="url(#terminal-1636594121-line-69)">def&#160;</text><text class="terminal-1636594121-r16" x="280.6" y="1703.6" textLength="97.6" clip-path="url(#terminal-1636594121-line-69)">readable</text><text class="terminal-1636594121-r11" x="378.2" y="1703.6" textLength="12.2" clip-path="url(#terminal-1636594121-line-69)">(</text><text class="terminal-1636594121-r11" x="390.4" y="1703.6" textLength="12.2" clip-path="url(#terminal-1636594121-line-69)">)</text><text class="terminal-1636594121-r4" x="402.6" y="1703.6" textLength="12.2" clip-path="url(#terminal-1636594121-line-69)">:</text><text class="terminal-1636594121-r1" x="1329.8" y="1703.6" textLength="12.2" clip-path="url(#terminal-1636594121-line-69)">│</text><text class="terminal-1636594121-r4" x="1342" y="1703.6" textLength="12.2" clip-path="url(#terminal-1636594121-line-69)">
+</text><text class="terminal-1636594121-r1" x="0" y="1728" textLength="12.2" clip-path="url(#terminal-1636594121-line-70)">│</text><text class="terminal-1636594121-r17" x="231.8" y="1728" textLength="549" clip-path="url(#terminal-1636594121-line-70)">Return&#160;whether&#160;object&#160;was&#160;opened&#160;for&#160;reading.</text><text class="terminal-1636594121-r1" x="1329.8" y="1728" textLength="12.2" clip-path="url(#terminal-1636594121-line-70)">│</text><text class="terminal-1636594121-r4" x="1342" y="1728" textLength="12.2" clip-path="url(#terminal-1636594121-line-70)">
+</text><text class="terminal-1636594121-r1" x="0" y="1752.4" textLength="12.2" clip-path="url(#terminal-1636594121-line-71)">│</text><text class="terminal-1636594121-r1" x="1329.8" y="1752.4" textLength="12.2" clip-path="url(#terminal-1636594121-line-71)">│</text><text class="terminal-1636594121-r4" x="1342" y="1752.4" textLength="12.2" clip-path="url(#terminal-1636594121-line-71)">
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+</text><text class="terminal-1636594121-r1" x="0" y="1801.2" textLength="12.2" clip-path="url(#terminal-1636594121-line-73)">│</text><text class="terminal-1636594121-r13" x="97.6" y="1801.2" textLength="97.6" clip-path="url(#terminal-1636594121-line-73)">readline</text><text class="terminal-1636594121-r4" x="195.2" y="1801.2" textLength="24.4" clip-path="url(#terminal-1636594121-line-73)">&#160;=</text><text class="terminal-1636594121-r15" x="231.8" y="1801.2" textLength="48.8" clip-path="url(#terminal-1636594121-line-73)">def&#160;</text><text class="terminal-1636594121-r16" x="280.6" y="1801.2" textLength="97.6" clip-path="url(#terminal-1636594121-line-73)">readline</text><text class="terminal-1636594121-r11" x="378.2" y="1801.2" textLength="12.2" clip-path="url(#terminal-1636594121-line-73)">(</text><text class="terminal-1636594121-r12" x="390.4" y="1801.2" textLength="48.8" clip-path="url(#terminal-1636594121-line-73)">size</text><text class="terminal-1636594121-r4" x="439.2" y="1801.2" textLength="12.2" clip-path="url(#terminal-1636594121-line-73)">=</text><text class="terminal-1636594121-r8" x="451.4" y="1801.2" textLength="24.4" clip-path="url(#terminal-1636594121-line-73)">-1</text><text class="terminal-1636594121-r4" x="475.8" y="1801.2" textLength="24.4" clip-path="url(#terminal-1636594121-line-73)">,&#160;</text><text class="terminal-1636594121-r20" x="500.2" y="1801.2" textLength="12.2" clip-path="url(#terminal-1636594121-line-73)">/</text><text class="terminal-1636594121-r11" x="512.4" y="1801.2" textLength="12.2" clip-path="url(#terminal-1636594121-line-73)">)</text><text class="terminal-1636594121-r4" x="524.6" y="1801.2" textLength="12.2" clip-path="url(#terminal-1636594121-line-73)">:</text><text class="terminal-1636594121-r1" x="1329.8" y="1801.2" textLength="12.2" clip-path="url(#terminal-1636594121-line-73)">│</text><text class="terminal-1636594121-r4" x="1342" y="1801.2" textLength="12.2" clip-path="url(#terminal-1636594121-line-73)">
+</text><text class="terminal-1636594121-r1" x="0" y="1825.6" textLength="12.2" clip-path="url(#terminal-1636594121-line-74)">│</text><text class="terminal-1636594121-r17" x="231.8" y="1825.6" textLength="317.2" clip-path="url(#terminal-1636594121-line-74)">Read&#160;until&#160;newline&#160;or&#160;EOF.</text><text class="terminal-1636594121-r1" x="1329.8" y="1825.6" textLength="12.2" clip-path="url(#terminal-1636594121-line-74)">│</text><text class="terminal-1636594121-r4" x="1342" y="1825.6" textLength="12.2" clip-path="url(#terminal-1636594121-line-74)">
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+</text><text class="terminal-1636594121-r1" x="0" y="2484.4" textLength="12.2" clip-path="url(#terminal-1636594121-line-101)">│</text><text class="terminal-1636594121-r17" x="231.8" y="2484.4" textLength="549" clip-path="url(#terminal-1636594121-line-101)">Return&#160;whether&#160;object&#160;supports&#160;random&#160;access.</text><text class="terminal-1636594121-r1" x="1329.8" y="2484.4" textLength="12.2" clip-path="url(#terminal-1636594121-line-101)">│</text><text class="terminal-1636594121-r4" x="1342" y="2484.4" textLength="12.2" clip-path="url(#terminal-1636594121-line-101)">
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+</text><text class="terminal-1636594121-r1" x="0" y="2606.4" textLength="12.2" clip-path="url(#terminal-1636594121-line-106)">│</text><text class="terminal-1636594121-r13" x="97.6" y="2606.4" textLength="97.6" clip-path="url(#terminal-1636594121-line-106)">truncate</text><text class="terminal-1636594121-r4" x="195.2" y="2606.4" textLength="24.4" clip-path="url(#terminal-1636594121-line-106)">&#160;=</text><text class="terminal-1636594121-r15" x="231.8" y="2606.4" textLength="48.8" clip-path="url(#terminal-1636594121-line-106)">def&#160;</text><text class="terminal-1636594121-r16" x="280.6" y="2606.4" textLength="97.6" clip-path="url(#terminal-1636594121-line-106)">truncate</text><text class="terminal-1636594121-r11" x="378.2" y="2606.4" textLength="12.2" clip-path="url(#terminal-1636594121-line-106)">(</text><text class="terminal-1636594121-r12" x="390.4" y="2606.4" textLength="36.6" clip-path="url(#terminal-1636594121-line-106)">pos</text><text class="terminal-1636594121-r4" x="427" y="2606.4" textLength="12.2" clip-path="url(#terminal-1636594121-line-106)">=</text><text class="terminal-1636594121-r9" x="439.2" y="2606.4" textLength="48.8" clip-path="url(#terminal-1636594121-line-106)">None</text><text class="terminal-1636594121-r4" x="488" y="2606.4" textLength="24.4" clip-path="url(#terminal-1636594121-line-106)">,&#160;</text><text class="terminal-1636594121-r20" x="512.4" y="2606.4" textLength="12.2" clip-path="url(#terminal-1636594121-line-106)">/</text><text class="terminal-1636594121-r11" x="524.6" y="2606.4" textLength="12.2" clip-path="url(#terminal-1636594121-line-106)">)</text><text class="terminal-1636594121-r4" x="536.8" y="2606.4" textLength="12.2" clip-path="url(#terminal-1636594121-line-106)">:</text><text class="terminal-1636594121-r1" x="1329.8" y="2606.4" textLength="12.2" clip-path="url(#terminal-1636594121-line-106)">│</text><text class="terminal-1636594121-r4" x="1342" y="2606.4" textLength="12.2" clip-path="url(#terminal-1636594121-line-106)">
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+</text><text class="terminal-1636594121-r1" x="0" y="2679.6" textLength="12.2" clip-path="url(#terminal-1636594121-line-109)">│</text><text class="terminal-1636594121-r17" x="231.8" y="2679.6" textLength="780.8" clip-path="url(#terminal-1636594121-line-109)">File&#160;pointer&#160;is&#160;left&#160;unchanged.&#160;&#160;Size&#160;defaults&#160;to&#160;the&#160;current&#160;IO</text><text class="terminal-1636594121-r1" x="1329.8" y="2679.6" textLength="12.2" clip-path="url(#terminal-1636594121-line-109)">│</text><text class="terminal-1636594121-r4" x="1342" y="2679.6" textLength="12.2" clip-path="url(#terminal-1636594121-line-109)">
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docs/blog/posts/await-me-maybe.md

@@ -0,0 +1,138 @@
+---
+draft: false
+date: 2023-03-15
+categories:
+  - DevLog
+authors:
+  - willmcgugan
+---
+
+# No-async async with Python
+
+A (reasonable) criticism of async is that it tends to proliferate in your code. In order to `await` something, your functions must be `async` all the way up the call-stack. This tends to result in you making things `async` just to support that one call that needs it or, worse, adding `async` just-in-case. Given that going from `def` to `async def` is a breaking change there is a strong incentive to go straight there.
+
+Before you know it, you have adopted a policy of "async all the things".
+
+<!-- more -->
+
+Textual is an async framework, but doesn't *require* the app developer to use the `async` and `await` keywords (but you can if you need to). This post is about how Textual accomplishes this async-agnosticism.
+
+!!! info
+
+    See this [example](https://textual.textualize.io/guide/widgets/#attributes-down) from the docs for an async-less Textual app.
+
+
+## An apology
+
+But first, an apology! In a previous post I said Textual "doesn't do any IO of its own". This is not accurate. Textual responds to keys and mouse events (**I**nput) and writes content to the terminal (**O**utput).
+
+Although Textual clearly does do IO, it uses `asyncio` mainly for *concurrency*. It allows each widget to update its part of the screen independently from the rest of the app.
+
+## Await me (maybe)
+
+The first no-async async technique is the "Await me maybe" pattern, a term first coined by [Simon Willison](https://simonwillison.net/2020/Sep/2/await-me-maybe/). This is particularly applicable to callbacks (or in Textual terms, message handlers).
+
+The `await_me_maybe` function below can run a callback that is either a plain old function *or* a coroutine (`async def`). It does this by awaiting the result of the callback if it is awaitable, or simply returning the result if it is not.
+
+
+```python
+import asyncio
+import inspect
+
+
+def plain_old_function():
+    return "Plain old function"
+
+async def async_function():
+    return "Async function"
+
+
+async def await_me_maybe(callback):
+    result = callback()
+    if inspect.isawaitable(result):
+        return await result
+    return result
+
+
+async def run_framework():
+    print(
+        await await_me_maybe(plain_old_function)
+    )
+    print(
+        await await_me_maybe(async_function)
+    )
+
+
+if __name__ == "__main__":
+    asyncio.run(run_framework())
+```
+
+## Optionally awaitable
+
+The "await me maybe" pattern is great when an async framework calls the app's code. The app developer can choose to write async code or not. Things get a little more complicated when the app wants to call the framework's API. If the API has *asynced all the things*, then it would force the app to do the same.
+
+Textual's API consists of regular methods for the most part, but there are a few methods which are optionally awaitable. These are *not* coroutines (which must be awaited to do anything).
+
+In practice, this means that those API calls initiate something which will complete a short time later. If you discard the return value then it won't prevent it from working. You only need to `await` if you want to know when it has finished.
+
+The `mount` method is one such method. Calling it will add a widget to the screen:
+
+```python
+def on_key(self):
+    # Add MyWidget to the screen
+    self.mount(MyWidget("Hello, World!"))
+```
+
+In this example we don't care that the widget hasn't been mounted immediately, only that it will be soon.
+
+!!! note
+
+    Textual awaits the result of mount after the message handler, so even if you don't *explicitly* await it, it will have been completed by the time the next message handler runs.
+
+We might care if we want to mount a widget then make some changes to it. By making the handler `async` and awaiting the result of mount, we can be sure that the widget has been initialized before we update it:
+
+```python
+async def on_key(self):
+    # Add MyWidget to the screen
+    await self.mount(MyWidget("Hello, World!"))
+    # add a border
+    self.query_one(MyWidget).styles.border = ("heavy", "red")
+```
+
+Incidentally, I found there were very few examples of writing awaitable objects in Python. So here is the code for `AwaitMount` which is returned by the `mount` method:
+
+```python
+class AwaitMount:
+    """An awaitable returned by mount() and mount_all()."""
+
+    def __init__(self, parent: Widget, widgets: Sequence[Widget]) -> None:
+        self._parent = parent
+        self._widgets = widgets
+
+    async def __call__(self) -> None:
+        """Allows awaiting via a call operation."""
+        await self
+
+    def __await__(self) -> Generator[None, None, None]:
+        async def await_mount() -> None:
+            if self._widgets:
+                aws = [
+                    create_task(widget._mounted_event.wait(), name="await mount")
+                    for widget in self._widgets
+                ]
+                if aws:
+                    await wait(aws)
+                    self._parent.refresh(layout=True)
+
+        return await_mount().__await__()
+```
+
+## Summing up
+
+Textual did initially "async all the things", which you might see if you find some old Textual code. Now async is optional.
+
+This is not because I dislike async. I'm a fan! But it does place a small burden on the developer (more to type and think about). With the current API you generally don't need to write coroutines, or remember to await things. But async is there if you need it.
+
+We're finding that Textual is increasingly becoming a UI to things which are naturally concurrent, so async was a good move. Concurrency can be a tricky subject, so we're planning some API magic to take the pain out of running tasks, threads, and processes. Stay tuned!
+
+Join us on our [Discord server](https://discord.gg/Enf6Z3qhVr) if you want to talk about these things with the Textualize developers.

docs/blog/posts/puppies-and-cake.md

@@ -0,0 +1,58 @@
+---
+draft: false
+date: 2023-07-29
+categories:
+  - DevLog
+authors:
+  - willmcgugan
+title: "Pull Requests are cake or puppies"
+---
+
+# Pull Requests are cake or puppies
+
+Broadly speaking, there are two types of contributions you can make to an Open Source project.
+
+<!-- more -->
+
+The first type is typically a bug fix, but could also be a documentation update, linting fix, or other change which doesn't impact core functionality.
+Such a contribution is like *cake*.
+It's a simple, delicious, gift to the project.
+
+The second type of contribution often comes in the form of a new feature.
+This contribution likely represents a greater investment of time and effort than a bug fix.
+It is still a gift to the project, but this contribution is *not* cake.
+
+A feature PR has far more in common with a puppy.
+The maintainer(s) may really like the feature but hesitate to merge all the same.
+They may even reject the contribution entirely.
+This is because a feature PR requires an ongoing burden to maintain.
+In the same way that a puppy needs food and walkies, a new feature will require updates and fixes long after the original contribution.
+Even if it is an amazing feature, the maintainer may not want to commit to that ongoing work.
+
+![Puppy cake](../images/puppy.jpg)
+
+The chances of a feature being merged can depend on the maturity of the project.
+At the beginning of a project, a maintainer may be delighted with a new feature contribution.
+After all, having others join you to build something is the joy of Open Source.
+And yet when a project gets more mature there may be a growing resistance to adding new features, and a greater risk that a feature PR is rejected or sits unappreciated in the PR queue.
+
+So how should a contributor avoid this?
+If there is any doubt, it's best to propose the feature to the maintainers before undertaking the work.
+In all likelihood they will be happy for your contribution, just be prepared for them to say "thanks but no thanks".
+Don't take it as a rejection of your gift: it's just that the maintainer can't commit to taking on a puppy.
+
+There are other ways to contribute code to a project that don't require the code to be merged in to the core.
+You could publish your change as a third party library.
+Take it from me: maintainers love it when their project spawns an ecosystem.
+You could also blog about how you solved your problem without an update to the core project.
+Having a resource that can be googled for, or a maintainer can direct people to, can be a huge help.
+
+What prompted me to think about this is that my two main projects, [Rich](https://github.com/Textualize/rich) and [Textual](https://github.com/Textualize/textual), are at quite different stages in their lifetime. Rich is relatively mature, and I'm unlikely to accept a puppy. If you can achieve what you need without adding to the core library, I am *probably* going to decline a new feature. Textual is younger and still accepting puppies &mdash; in addition to stick insects, gerbils, capybaras and giraffes.
+
+!!! tip
+
+    If you are maintainer, and you do have to close a feature PR, feel free to link to this post.
+
+---
+
+Join us on the [Discord Server](https://discord.gg/Enf6Z3qhVr) if you want to discuss puppies and other creatures.

docs/blog/posts/release0-11-0.md

@@ -38,7 +38,7 @@ Additionally there are new [update_cell][textual.widgets.DataTable.update_cell]
 
 ## Tree control
 
-The [Tree](../../api/tree.md) widget has grown a few methods to programmatically expand, collapse and toggle tree nodes.
+The [Tree](../../widgets/tree.md) widget has grown a few methods to programmatically expand, collapse and toggle tree nodes.
 
 ## Breaking changes
 

docs/blog/posts/release0-16-0.md

@@ -0,0 +1,66 @@
+---
+draft: false
+date: 2023-03-22
+categories:
+  - Release
+title: "Textual 0.16.0 adds TabbedContent and border titles"
+authors:
+  - willmcgugan
+---
+
+# Textual 0.16.0 adds TabbedContent and border titles
+
+Textual 0.16.0 lands 9 days after the previous release. We have some new features to show you.
+
+<!-- more -->
+
+There are two highlights in this release. In no particular order, the first is [TabbedContent](../../widgets/tabbed_content.md) which uses a row of *tabs* to navigate content. You will have likely encountered this UI in the desktop and web. I think in Windows they are known as "Tabbed Dialogs".
+
+This widget combines existing [Tabs](../../widgets/tabs.md) and [ContentSwitcher](../../api/content_switcher.md) widgets and adds an expressive interface for composing. Here's a trivial example to use content tabs to navigate a set of three markdown documents:
+
+```python
+def compose(self) -> ComposeResult:
+    with TabbedContent("Leto", "Jessica", "Paul"):
+        yield Markdown(LETO)
+        yield Markdown(JESSICA)
+        yield Markdown(PAUL)
+```
+
+Here's an example of the UI you can create with this widget (note the nesting)!
+
+```{.textual path="docs/examples/widgets/tabbed_content.py" press="j"}
+```
+
+
+## Border titles
+
+The second highlight is a frequently requested feature (FRF?). Widgets now have the two new string properties, `border_title` and `border_subtitle`, which will be displayed within the widget's border.
+
+You can set the alignment of these titles via [`border-title-align`](../../styles/border_title_align.md) and [`border-subtitle-align`](../../styles/border_subtitle_align.md). Titles may contain [Console Markup](https://rich.readthedocs.io/en/latest/markup.html), so you can add additional color and style to the labels.
+
+Here's an example of a widget with a title:
+
+<div>
+--8<-- "docs/blog/images/border-title.svg"
+</div>
+
+BTW the above is a command you can run to see the various border styles you can apply to widgets.
+
+```
+textual borders
+```
+
+## Container changes
+
+!!! warning "Breaking change"
+
+    If you have an app that uses any container classes, you should read this section.
+
+We've made a change to containers in this release. Previously all containers had *auto* scrollbars, which means that any container would scroll if its children didn't fit. With nested layouts, it could be tricky to understand exactly which containers were scrolling. In 0.16.0 we split containers in to scrolling and non-scrolling versions. So `Horizontal` will now *not* scroll by default, but `HorizontalScroll` will have automatic scrollbars.
+
+
+## What else?
+
+As always, see the [release notes](https://github.com/Textualize/textual/releases/tag/v0.16.0) for the full details on this update.
+
+If you want to talk about this update or anything else Textual related, join us on our [Discord server](https://discord.gg/Enf6Z3qhVr).