[New-bugs-announce] [issue31640] Document exit() from parse_args

[Charles Merriam]

New submission from Charles Merriam <charles.merriam at gmail.com>:

It is unexpected to testers and users to ArgParse that it terminates the process; one usually expects an error code.  Fix by modifying documentation to section 16.4.4 The parse_args() Method. 

Change the words "Return the populated namespace." to "Return the populated namespace, or exit with a status 0 if the help message is printed, or exit with status 2 if an invalid argument was parsed."

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assignee: docs at python
components: Documentation
messages: 303341
nosy: CharlesMerriam, docs at python
priority: normal
severity: normal
status: open
title: Document exit() from parse_args
type: enhancement
versions: Python 3.5, Python 3.6, Python 3.7, Python 3.8

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue31640>
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