ignore pyc

BUG=none
TESTED=untested
R=harryjin@google.com

Review URL: https://webrtc-codereview.appspot.com/54709004.
diff --git a/.gitignore b/.gitignore
index 6cb8a9a..d7a9c7e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
+*.pyc
 .gn
 build
 buildtools