Ignore python virtualenv directory

Change-Id: I3937ba4b334340e354e07b82fd8d4aba4a15e498
diff --git a/.gitignore b/.gitignore
index 14dc7bd..22ac932 100755
--- a/.gitignore
+++ b/.gitignore
@@ -8,7 +8,7 @@
 *.egg-info
 dist
 build
-# .venv
+.venv/
 .tox
 
 # go related