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gh-138019: improve help message for json.tool (#138037)

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yihong 2025-08-22 16:44:25 +08:00 • committed by GitHub
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Lib/json/tool.py
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@ -46,7 +46,8 @@ def main():
'to validate and pretty-print JSON objects.')
parser = argparse.ArgumentParser(description=description, color=True)
parser.add_argument('infile', nargs='?',
help='a JSON file to be validated or pretty-printed',
help='a JSON file to be validated or pretty-printed; '
'defaults to stdin',
default='-')
parser.add_argument('outfile', nargs='?',
help='write the output of infile to outfile',