Disabled Py3.6 checks and added flake8.

Author: madpah

.github/workflows/poetry.yml

@@ -16,6 +16,33 @@ env:
   REPORTS_DIR: CI_reports
 
 jobs:
+  coding-standards:
+    name: Linting & Coding Standards
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        # see https://github.com/actions/checkout
+        uses: actions/checkout@v2
+      - name: Setup Python Environment
+        # see https://github.com/actions/setup-python
+        uses: actions/setup-python@v2
+        with:
+          python-version: python3.9
+          architecture: 'x64'
+      - name: Install poetry
+        # see https://github.com/marketplace/actions/setup-poetry
+        uses: Gr1N/setup-poetry@v7
+        with:
+          poetry-version: 1.1.8
+      - uses: actions/cache@v2
+        with:
+          path: ~/.cache/pypoetry/virtualenvs
+          key: ${{ runner.os }}-poetry-${{ hashFiles('poetry.lock') }}
+      - name: Install dependencies
+        run: poetry install
+      - name: Run tox
+        run: poetry run tox -e flake8
+
   build-and-test:
     name: Build & Test (Python ${{ matrix.python-version }}
     runs-on: ubuntu-latest
@@ -28,7 +55,7 @@ jobs:
           - "3.9" # highest supported
           - "3.8"
           - "3.7"
-          - "3.6" # lowest supported
+#          - "3.6" # lowest supported
     timeout-minutes: 30
     steps:
       - name: Checkout