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bpo-37908: Add an example of ArgumentParser.exit() #15455

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Merged
merged 11 commits into from
Sep 12, 2019
Merged

bpo-37908: Add an example of ArgumentParser.exit() #15455

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efee618
Add an example of ArgumentParser.Exit()
shihai1991 Aug 24, 2019
aaf0c72
update docs
shihai1991 Aug 24, 2019
5be636e
Update Doc/library/argparse.rst
shihai1991 Aug 25, 2019
681ce14
Update Doc/library/argparse.rst
shihai1991 Aug 25, 2019
030898a
Format the example
matrixise Sep 12, 2019
c04e675
update examples of argparse.rst
shihai1991 Sep 12, 2019
99400bc
update examples
shihai1991 Sep 12, 2019
bd05968
Change the example and remove sys.exit (useless in this case)
matrixise Sep 12, 2019
d4e6528
update example
shihai1991 Sep 12, 2019
720c877
resolve conflicts
shihai1991 Sep 12, 2019
98b0772
revert to Stéphane Wirtel's patch
shihai1991 Sep 12, 2019
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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 @@ -2002,7 +2002,14 @@ 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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