Refine gh-actions

* Update and rename Python_test.yml to Lint.yaml
* Create Format.yaml

.github/workflows/Format.yaml

@@ -0,0 +1,39 @@
+name: Python code format
+on: 
+  push:
+    branches: master
+jobs:
+  Format:
+    if: "!contains(github.event.head_commit.message, '!format')"
+    runs-on: ubuntu-20.04
+    strategy:
+      fail-fast: false
+    steps:
+      - uses: actions/checkout@main
+      - name: Set up Python
+        uses: actions/setup-python@main
+        with:
+          python-version: 3.x
+      - uses: actions/cache@main
+        with:
+          path: ~/.cache/pip
+          key: ${{ runner.os }}-pip-format
+          restore-keys: |
+            ${{ runner.os }}-pip-format
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install autopep8 pycodestyle
+      - name: Format by autopep8 then Push
+        env:
+          GIT_EMAIL: github-actions[bot]@users.noreply.github.com
+          GIT_ACTOR: github-actions[bot]
+        run: |
+          export HASH_SHORT=$(git rev-parse --short HEAD)
+          git checkout -b format--${HASH_SHORT}
+          git config --global user.email $GIT_EMAIL
+          git config --global user.name  $GIT_ACTOR
+          python -m autopep8 --in-place --aggressive --aggressive --experimental -r ./
+          git add -A
+          git commit -m 'Format by autopep8' -m From: -m $(git rev-parse HEAD)
+          git push --set-upstream origin format--${HASH_SHORT}

.github/workflows/Lint.yaml

@@ -0,0 +1,26 @@
+name: Python code review
+on: [push, pull_request]
+jobs:
+  Test:
+    runs-on: ubuntu-20.04
+    strategy:
+      fail-fast: false
+    steps:
+      - uses: actions/checkout@main
+      - name: Set up Python
+        uses: actions/setup-python@main
+        with:
+          python-version: 3.x
+      - uses: actions/cache@main
+        with:
+          path: ~/.cache/pip
+          key: ${{ runner.os }}-pip-lint
+          restore-keys: |
+            ${{ runner.os }}-pip-lint
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install flake8
+      - name: Lint with flake8
+        run: |
+          python -m flake8 . --builtins=_,I --ignore=E501 --count --benchmark --show-source --statistics

.github/workflows/Python_tests.yml

@@ -1,35 +0,0 @@
-name: Python_tests
-on: [push, pull_request]
-jobs:
-  Python_tests:
-    runs-on: ${{ matrix.os }}
-    strategy:
-      fail-fast: false
-      matrix:
-        os: [macos-latest]
-        python-version: [2.7, 3.8]
-    steps:
-      - uses: actions/checkout@v2
-      - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v1
-        with:
-          python-version: ${{ matrix.python-version }}
-      - name: Install dependencies
-        run: |
-          python -m pip install --upgrade pip
-          pip install flake8 pytest  # -r requirements.txt
-      #- name: Check formatting with black
-      #  if: matrix.python-version == '3.8'
-      #  run: |
-      #     pip install black
-      #     black --check .
-      - name: Lint with flake8
-        run: |
-          # stop the build if there are Python syntax errors or undefined names
-          flake8 . --builtins=_,I --count --select=E9,F63,F7,F82 --show-source --statistics
-          # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
-          flake8 . --builtins=_,I --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
-      #- name: Test with pytest
-      #  run: pytest
-      #- name: Run doctests with pytest
-      #  run: pytest --doctest-modules