diff --git a/VisualStudio.gitignore b/VisualStudio.gitignore
index bca1984dd5c13e77e0cb57763754d2cbde614738..d56f8b532889e73e92aafe28695b83e82adb9f60 100644
--- a/VisualStudio.gitignore
+++ b/VisualStudio.gitignore
@@ -254,3 +254,7 @@ paket-files/
 
 # CodeRush
 .cr/
+
+# Python Tools for Visual Studio (PTVS)
+__pycache__/
+*.pyc