This seeks to remove the "_" from the key presses of snapshots and inline runs in the documentation. The "_" no longer does anything, but got legacy reasons at the moment we can't actually allow "_" to be an input to a "faked" keypress in the docs and snapshots. Removing these clears the way to letting "_" have the same status as any other character. See #1994.
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All you need to get started building Textual apps.
Requirements
Textual requires Python 3.7 or later (if you have a choice, pick the most recent Python). Textual runs on Linux, macOS, Windows and probably any OS where Python also runs.
!!! info inline end "Your platform"
### :fontawesome-brands-linux: Linux (all distros)
All Linux distros come with a terminal emulator that can run Textual apps.
### :material-apple: macOS
The default terminal app is limited to 256 colors. We recommend installing a newer terminal such as [iterm2](https://iterm2.com/), [Kitty](https://sw.kovidgoyal.net/kitty/), or [WezTerm](https://wezfurlong.org/wezterm/).
### :material-microsoft-windows: Windows
The new [Windows Terminal](https://apps.microsoft.com/store/detail/windows-terminal/9N0DX20HK701?hl=en-gb&gl=GB) runs Textual apps beautifully.
Installation
You can install Textual via PyPI.
If you plan on developing Textual apps, then you should install textual[dev]. The [dev] part installs a few extra dependencies for development.
pip install "textual[dev]"
If you only plan on running Textual apps, then you can drop the [dev] part:
pip install textual
Demo
Once you have Textual installed, run the following to get an impression of what it can do:
python -m textual
If Textual is installed you should see the following:
Examples
The Textual repository comes with a number of example apps. To try out the examples, first clone the Textual repository:
=== "HTTPS"
```bash
git clone https://github.com/Textualize/textual.git
```
=== "SSH"
```bash
git clone git@github.com:Textualize/textual.git
```
=== "GitHub CLI"
```bash
gh repo clone Textualize/textual
```
With the repository cloned, navigate to the /examples/ directory where you will find a number of Python files you can run from the command line:
cd textual/examples/
python code_browser.py ../
Textual CLI
If you installed the dev dependencies you have access to the textual CLI command. There are a number of sub-commands which will aid you in building Textual apps.
textual --help
See devtools for more about the textual command.
Need help?
See the help page for how to get help with Textual, or to report bugs.