Merge branch 'master' of https://github.com/grpc/grpc into yapf-tools
diff --git a/tools/distrib/yapf_code.sh b/tools/distrib/yapf_code.sh
index f096868..44eb967 100755
--- a/tools/distrib/yapf_code.sh
+++ b/tools/distrib/yapf_code.sh
@@ -19,11 +19,13 @@
 cd "$(dirname "${0}")/../.."
 
 DIRS=(
+    'examples/python'
     'src/python'
     'tools'
 )
 EXCLUSIONS=(
     '*protoc_lib_deps.py'  # this file is auto-generated
+    '*_pb2*.py'  # no need to format protoc generated files
 )
 
 VIRTUALENV=yapf_virtual_environment