add auto lint jupyter-extension

.circleci/config.yml

@@ -47,3 +47,9 @@ jobs:
           name: Build Jupyter Extension
           command: npx lerna run build:asap --scope nteract-on-jupyter
           no_output_timeout: 30m
+
+      - run:
+          name: Lint Jupyter Extension
+          command: |
+            pip install --user black
+            yarn run lint:jupyterExtension

.pre-commit-config.yaml

@@ -0,0 +1,6 @@
+repos:
+-   repo: https://github.com/ambv/black
+    rev: 61feadc
+    hooks:
+    - id: black
+      language_version: python

applications/jupyter-extension/pyproject.toml

@@ -0,0 +1,30 @@
+# Example configuration for Black.
+
+# NOTE: you have to use single-quoted strings in TOML for regular expressions.
+# It's the equivalent of r-strings in Python.  Multiline strings are treated as
+# verbose regular expressions by Black.  Use [ ] to denote a significant space
+# character.
+
+[tool.black]
+line-length = 100
+include = '\.pyi?$'
+exclude = '''
+/(
+    \.git
+  | \.hg
+  | \.mypy_cache
+  | \.tox
+  | \.venv
+  | _build
+  | buck-out
+  | build
+  | dist
+
+  # The following are specific to Black, you probably don't want those.
+  | blib2to3
+  | tests/data
+  | profiling
+)/
+'''
+skip-string-normalization = true
+

applications/jupyter-extension/setup.py

@@ -5,7 +5,7 @@
 import json
 import os
 
-version = '0.0.0-dev'
+version = '0.0.1-dev'
 name = "nteract_on_jupyter"
 
 here = os.path.realpath(os.path.dirname(__file__))
@@ -14,11 +14,10 @@
     packageJSON = json.load(f)
     version = packageJSON['version']
 
-config_d_filepath = os.path.join('jupyter-config',
-                                 'jupyter_notebook_config.d',
-                                 'nteract_on_jupyter.json')
-data_files = [('etc/jupyter/jupyter_notebook_config.d', [config_d_filepath]),
-]
+config_d_filepath = os.path.join(
+    'jupyter-config', 'jupyter_notebook_config.d', 'nteract_on_jupyter.json'
+)
+data_files = [('etc/jupyter/jupyter_notebook_config.d', [config_d_filepath])]
 
 setuptools.setup(
     name=name,
@@ -32,10 +31,5 @@
     zip_safe=False,
     install_requires=['notebook'],
     data_files=data_files,
-    entry_points={
-        'console_scripts': [
-            'jupyter-nteract = nteract_on_jupyter.nteractapp:main'
-        ]
-    }
-
+    entry_points={'console_scripts': ['jupyter-nteract = nteract_on_jupyter.nteractapp:main']},
 )