add mypy exclusion for migration files
@@ -7,7 +7,7 @@ ignore = F401,E731
# F401 - Module imported but unused
# E731 - Do not assign lambda expression, use a def
# Source: https://lintlyci.github.io/Flake8Rules/
-exclude = tensorhive/snippet.py,tensorhive/app/web/dev/node_modules/
+exclude = tensorhive/migrations/,tensorhive/app/web/dev/node_modules/
[mypy]
python_version = 3.6
