Add pull request template

.github/PULL_REQUEST_TEMPLATE/adafruit_circuitpython_pr.md

@@ -0,0 +1,13 @@
+# SPDX-FileCopyrightText: 2021 Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
+Thank you for contributing! Before you submit a pull request, please read the following.
+
+Make sure any changes you're submitting are in line with the CircuitPython Design Guide, available here: https://docs.circuitpython.org/en/latest/docs/design_guide.html
+
+If your changes are to documentation, please verify that the documentation builds locally by following the steps found here: https://adafru.it/build-docs
+
+Before submitting the pull request, make sure you've run Pylint and Black locally on your code. You can do this manually or using pre-commit. Instructions are available here: https://adafru.it/check-your-code
+
+Please remove all of this text before submitting. Include an explanation or list of changes included in your PR, as well as, if applicable, a link to any related issues.

.pre-commit-config.yaml

@@ -4,7 +4,7 @@
 
 repos:
 -   repo: https://github.com/python/black
-    rev: 19.10b0
+    rev: 20.8b1
     hooks:
     - id: black
 -   repo: https://github.com/fsfe/reuse-tool
@@ -18,15 +18,23 @@ repos:
     -   id: end-of-file-fixer
     -   id: trailing-whitespace
 -   repo: https://github.com/pycqa/pylint
-    rev: pylint-2.6.0
+    rev: pylint-2.7.1
     hooks:
     -   id: pylint
-        name: lint (examples)
+        name: pylint (library code)
         types: [python]
-        files: ^examples/
-        args:
-        - --disable=missing-docstring,invalid-name,bad-whitespace
-    -   id: pylint
-        name: lint (code)
-        types: [python]
-        exclude: "^(docs/|examples/|setup.py$)"
+        exclude: "^(docs/|examples/|tests/|setup.py$)"
+-   repo: local
+    hooks:
+    -   id: pylint_examples
+        name: pylint (examples code)
+        description: Run pylint rules on "examples/*.py" files
+        entry: /usr/bin/env bash -c
+        args: ['([[ ! -d "examples" ]] || for example in $(find . -path "./examples/*.py"); do pylint --disable=missing-docstring,invalid-name,consider-using-f-string $example; done)']
+        language: system
+    -   id: pylint_tests
+        name: pylint (tests code)
+        description: Run pylint rules on "tests/*.py" files
+        entry: /usr/bin/env bash -c
+        args: ['([[ ! -d "tests" ]] || for test in $(find . -path "./tests/*.py"); do pylint --disable=missing-docstring $test; done)']
+        language: system

jepler_udecimal/__init__.py

@@ -5348,7 +5348,12 @@ BasicContext = Context(
     flags=[],
 )
 
-ExtendedContext = Context(prec=9, rounding=ROUND_HALF_EVEN, traps=[], flags=[],)
+ExtendedContext = Context(
+    prec=9,
+    rounding=ROUND_HALF_EVEN,
+    traps=[],
+    flags=[],
+)
 
 
 ##### crud for parsing strings #############################################