Add support for static type checking using mypy (#44)

.github/workflows/build.yml

@@ -14,5 +14,9 @@ jobs:
         uses: actions/setup-python@v2
         with:
           python-version: 3.6
+      - name: Install dev dependecies
+        run: pip install -r requirements.txt
+      - name: Run static type checking
+        run: mypy forest
       - name: Run tests
         run: python -m unittest tests/imports.py

forest/poplar/raw/doc.py

@@ -80,7 +80,7 @@
     The numeric <code> does not appear in raw Beiwe data.  These are intended
     to provide a convenient & consistent encoding for variable levels.
 '''
-POWER_EVENTS = {'Android': {}, 'iOS': {}}
+POWER_EVENTS = {'Android': {}, 'iOS': {}}  # type: ignore
 with open(DOCPATHS['power_events.csv']) as f:
     next(f) # skip header row
     for line in f:

mypy.ini

@@ -0,0 +1,23 @@
+[mypy]
+python_version = 3.6
+
+[mypy-forest.poplar.legacy.common_funcs.*]
+ignore_missing_imports = True
+
+[mypy-holidays]
+ignore_missing_imports = True
+
+[mypy-numpy]
+ignore_missing_imports = True
+
+[mypy-openrouteservice]
+ignore_missing_imports = True
+
+[mypy-pandas]
+ignore_missing_imports = True
+
+[mypy-scipy.*]
+ignore_missing_imports = True
+
+[mypy-timezonefinder]
+ignore_missing_imports = True

requirements.txt

@@ -0,0 +1,6 @@
+mypy==0.910
+pytest==6.2.5
+pytest-mock==3.6.1
+types-dataclasses==0.6.1
+types-pytz==2021.3.0
+types-setuptools==57.4.2