Set up tox

MANIFEST.in

+include HISTORY.rst
+include README.rst
+include sohstationviewer/database/soh.db
+
+recursive-exclude * __pycache__
+recursive-exclude * *.py[co]

setup.py

@@ -38,7 +38,8 @@ setup(
     setup_requires=[],
     extras_require={
         'dev': [
-            'flake8'
+            'flake8',
+            'tox'
         ]
     },
     license="GNU General Public License v3",

tox.ini

+[tox]
+envlist = py38, py39, python3.10, flake8
+
+[testenv]
+commands = python -m unittest
+
+[testenv:flake8]
+basepython = python
+deps = flake8
+commands = flake8 --exclude sohstationviewer/view/ui sohstationviewer
+           flake8 tests
+
+