Gh actions for test and lint (#135)

* Cleanup tests and linting

Update tox to supported python3 versions, fix an outdated test, and sort
out a couple of linting recommendations. Ignore the lint advice for
formatting using f strings, as this project does not use f strings.

* Add github action for running tests

.github/workflows/test-and-lint.yml

@@ -0,0 +1,25 @@
+name: Python package
+
+on:
+  - push
+  - pull_request
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ['3.7', '3.8', '3.9', '3.10']
+
+    steps:
+    - uses: actions/checkout@v1
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v2
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install tox tox-gh-actions
+    - name: Test with tox
+      run: tox

tox.ini

@@ -2,12 +2,19 @@
 envlist = py37, py38, py39, py310, lint
 skip_missing_interpreters = True
 
+[gh-actions]
+python =
+    3.7: py37
+    3.8: py38
+    3.9: py39
+    3.10: py310, lint
+
 [testenv]
 setenv =
     LANG=en_US.UTF-8
     PYTHONPATH = {toxinidir}:{toxinidir}/RFXtrx
 commands =
-     py.test -v --timeout=30 --cov --cov-report= {posargs} 
+     py.test -v --timeout=30 --cov --cov-report= {posargs}
      py.test --doctest-modules doctest/
 deps =
      -r{toxinidir}/requirements.txt