Format code using black

.git-blame-ignore-revs

@@ -0,0 +1,2 @@
+# migrate code to black
+f922e2e1e60e3a964dbd07597e7c44c068b7ba1d

.github/workflows/build.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.5', '3.6', '3.7', '3.8']
+        python-version: ['3.6', '3.7', '3.8', '3.9.0-rc.1']
     steps:
       - name: Checkout
         uses: actions/checkout@v2
@@ -58,7 +58,7 @@ jobs:
       - name: Install dependencies
         run: |
           pip install wheel
-          pip install --upgrade --upgrade-strategy=eager pytest pytest-asyncio "jupyterlab~=2.0"
+          pip install --upgrade --upgrade-strategy=eager "jupyterlab~=2.0"
 
       - name: Test the extension
         run: |
@@ -71,6 +71,9 @@ jobs:
           pip install jupyterlab_git[test] --pre --no-index --find-links=dist --no-deps --no-cache-dir -v
           # Install the extension dependencies based on the current setup.py
           pip install jupyterlab_git[test]
+
+          # Python formatting checks
+          black . --check
 
           # Run the Python tests
           pytest jupyterlab_git -r ap

.pre-commit-config.yaml

@@ -0,0 +1,6 @@
+repos:
+  - repo: https://github.com/psf/black
+    rev: 20.8b1 # Replace by any tag/version: https://github.com/psf/black/tags
+    hooks:
+      - id: black
+        language_version: python3 # Should be a command that runs python3.6+

README.md

@@ -123,6 +123,7 @@ cd jupyterlab-git
 
 # Install the server extension in development mode and enable it
 pip install -e .[test]
+pre-commit install
 jupyter serverextension enable --py jupyterlab_git --sys-prefix
 
 # Build and install your development version of the extension

jupyterlab_git/__init__.py

@@ -8,6 +8,7 @@
 from jupyterlab_git.handlers import setup_handlers
 from jupyterlab_git.git import Git
 
+
 class JupyterLabGit(Configurable):
     """
     Config options for jupyterlab_git
@@ -16,26 +17,24 @@ class JupyterLabGit(Configurable):
     """
 
     actions = Dict(
-        help='Actions to be taken after a git command. Each action takes a list of commands to execute (strings). Supported actions: post_init',
+        help="Actions to be taken after a git command. Each action takes a list of commands to execute (strings). Supported actions: post_init",
         config=True,
         trait=List(
-            trait=Unicode(),
-            help='List of commands to run. E.g. ["touch baz.py"]'
+            trait=Unicode(), help='List of commands to run. E.g. ["touch baz.py"]'
         )
         # TODO Validate
     )
 
+
 def _jupyter_server_extension_paths():
-    """Declare the Jupyter server extension paths.
-    """
+    """Declare the Jupyter server extension paths."""
     return [{"module": "jupyterlab_git"}]
 
 
 def load_jupyter_server_extension(nbapp):
-    """Load the Jupyter server extension.
-    """
+    """Load the Jupyter server extension."""
 
     config = JupyterLabGit(config=nbapp.config)
-    git = Git(nbapp.web_app.settings['contents_manager'], config)
+    git = Git(nbapp.web_app.settings["contents_manager"], config)
     nbapp.web_app.settings["git"] = git
     setup_handlers(nbapp.web_app)

jupyterlab_git/_version.py

@@ -1,7 +1,7 @@
 # Copyright (c) Project Jupyter.
 # Distributed under the terms of the Modified BSD License.
 
-version_info = (0, 21, 1)
-flag = ''
+version_info = (0, 22, 0)
+flag = "a0"
 
 __version__ = ".".join(map(str, version_info)) + flag