Add .mypy_cache/ to .gitignore (#1192)

JelleZijlstra · gvanrossum · commit 01ce742298ea · 2017-04-22T15:54:48.000-07:00
Since it's now generated by mypy by default.
diff --git a/.gitignore b/.gitignore
@@ -62,3 +62,6 @@ analyze.py
 .vscode/
 .idea/
 .venv*/
+
+# Mypy cache
+.mypy_cache/
