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jsonを読み込んでProtocol buffersで定義された形式でバイナリを出力するPythonコードのサンプル
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import google.protobuf.json_format | |
import test_pb2 | |
# test.proto | |
# $ protoc --python_out=. test.proto | |
""" | |
syntax = "proto3"; | |
message Test { | |
bool b_value = 1; | |
string s_value = 2; | |
int32 i_value = 3; | |
float f_value = 4; | |
} | |
""" | |
JSON_TEXT = """{ | |
"b_value": true, | |
"s_value": "0123456789ABCDEF", | |
"i_value": 123, | |
"f_value": 3.1415 | |
}""" | |
def main(): | |
pb_obj = test_pb2.Test() | |
google.protobuf.json_format.Parse(JSON_TEXT, pb_obj) | |
print(pb_obj) | |
data = pb_obj.SerializeToString() | |
# data はバイトデータになっているので、そのままファイルに保存するだけです。 | |
print(data) | |
if __name__ == "__main__": | |
main() |
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