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[3.8] bpo-37908: Add an example of ArgumentParser.exit() (GH-15455) #16065

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Sep 12, 2019
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[3.8] bpo-37908: Add an example of ArgumentParser.exit() (GH-15455) #16065

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9 changes: 8 additions & 1 deletion Doc/library/argparse.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -2001,7 +2001,14 @@ Exiting methods
.. method:: ArgumentParser.exit(status=0, message=None)

This method terminates the program, exiting with the specified *status*
and, if given, it prints a *message* before that.
and, if given, it prints a *message* before that. The user can override
this method to handle these steps differently::

class ErrorCatchingArgumentParser(argparse.ArgumentParser):
def exit(self, status=0, message=None):
if status:
raise Exception(f'Exiting because of an error: {message}')
exit(status)

.. method:: ArgumentParser.error(message)

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