Fix mypy type checking

mypy.ini

@@ -9,9 +9,14 @@ warn_redundant_casts = True
 warn_incomplete_stub = True
 follow_imports = normal
 show_error_codes = True
+namespace_packages = true
+explicit_package_bases = true
 
 # Ignore errors in the docs/conf.py file
-[mypy-conf]
+[mypy-docs.conf]
+ignore_errors = True
+
+[mypy-examples.*]
 ignore_errors = True
 
 # TODO: burn these down

pynamodb/_compat.py

@@ -24,7 +24,7 @@ def load_module(name, path):
         # using the following approach in >= python 3.5:
         # https://docs.python.org/3/library/importlib.html#importing-a-source-file-directly
         loader = SourceFileLoader(name, path)
-        return loader.load_module()  # type: ignore
+        return loader.load_module()
     else:
         from imp import load_source
         return load_source(name, path)

requirements-dev.txt

@@ -10,3 +10,4 @@ pytest-cov
 
 # used for type-checking
 botocore-stubs
+types-six