Move flake8 config to .flake8

Author: ksunden

.flake8

@@ -0,0 +1,26 @@
+[flake8]
+max-line-length = 88
+select =
+    # flake8 default
+    D, E, F, W,
+ignore =
+    # flake8 default
+    E121,E123,E126,E226,E24,E704,W503,W504,
+    # pydocstyle
+    D100, D101, D102, D103, D104, D105, D106,
+    D200, D202, D204, D205,
+    D301,
+    D400, D401, D403, D404
+    # ignored by pydocstyle numpy docstring convention
+    D107, D203, D212, D213, D402, D413, D415, D416, D417,
+
+exclude =
+    .git
+    build
+    # External files.
+    .tox
+    .eggs
+
+per-file-ignores =
+    setup.py: E402
+force-check = True

.github/workflows/reviewdog.yml

@@ -30,6 +30,6 @@ jobs:
           REVIEWDOG_GITHUB_API_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
           set -o pipefail
-          flake8 --max-line-length 88 cycler | \
+          flake8 | \
             reviewdog -f=pep8 -name=flake8 \
               -tee -reporter=github-check -filter-mode nofilter

setup.py

@@ -5,7 +5,7 @@
       author='Thomas A Caswell',
       author_email='matplotlib-users@python.org',
       packages=find_packages(),
-      package_data = {"cycler": ["py.typed"]},
+      package_data={"cycler": ["py.typed"]},
       description='Composable style cycles',
       url='https://github.com/matplotlib/cycler',
       platforms='Cross platform (Linux, macOS, Windows)',