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-rw-r--r--tools/distrib/python/grpcio_tools/grpc/tools/protoc.py1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/distrib/python/grpcio_tools/grpc/tools/protoc.py b/tools/distrib/python/grpcio_tools/grpc/tools/protoc.py
index 931fda27d2..e1256a7dd9 100644
--- a/tools/distrib/python/grpcio_tools/grpc/tools/protoc.py
+++ b/tools/distrib/python/grpcio_tools/grpc/tools/protoc.py
@@ -41,6 +41,7 @@ def main(command_arguments):
command_arguments: a list of strings representing command line arguments to
`protoc`.
"""
+ command_arguments = [argument.encode() for argument in command_arguments]
return _protoc_compiler.run_main(command_arguments)
if __name__ == '__main__':