ignore compiled python files (pyc)

Signed-off-by: Sebastien Goasguen <runseb@gmail.com>
diff --git a/.gitignore b/.gitignore
index a5819d9..14a5aa9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,6 +15,7 @@
 # under the License.
 
 /build
+*.pyc
 
 # OS generated files #
 ######################