[issue24251] Different behavior for argparse between 2.7.8 and 2.7.9 when adding the same arguments to the root and the sub commands

[paul j3]

Changes by paul j3 :


--
resolution:  -> not a bug
stage:  -> resolved
status: open -> closed

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[issue24251] Different behavior for argparse between 2.7.8 and 2.7.9 when adding the same arguments to the root and the sub commands

[paul j3]

paul j3 added the comment:

And the corresponding bug issue

http://bugs.python.org/issue9351

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nosy: +paul.j3

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[issue24251] Different behavior for argparse between 2.7.8 and 2.7.9 when adding the same arguments to the root and the sub commands

[Rémi Rampin]

Changes by Rémi Rampin remiram...@gmail.com:


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nosy: +remram

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[issue24251] Different behavior for argparse between 2.7.8 and 2.7.9 when adding the same arguments to the root and the sub commands

[Hao Huang]

New submission from Hao Huang:

When I was trying to add the same argument to both the root command and the sub 
command and you put the arguments before the subcommand, In 2.7.8 the arguments 
would be parsed correctly. But in 2.7.9, they wouldn't but these arguments 
would show up in the help doc:(

For python2.7.8
~$ python2.7
Python 2.7.8 (default, Oct 29 2014, 13:45:48)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type help, copyright, credits or license for more information.
 import argparse

 parser = argparse.ArgumentParser()
 parser.add_argument(-s, dest=start)
_StoreAction(option_strings=['-s'], dest='start', nargs=None, const=None, 
default=None, type=None, choices=None, help=None, metavar=None)

 subparsers = parser.add_subparsers()
 subparser = subparsers.add_parser(command)
 subparser.add_argument(-s, dest=start)
_StoreAction(option_strings=['-s'], dest='start', nargs=None, const=None, 
default=None, type=None, choices=None, help=None, metavar=None)

 parser.parse_args([-s, 1, command])
Namespace(start='1')
 parser.parse_args([command, -s, 1])
Namespace(start='1')

For python 2.7.9
~$ python2.7
Python 2.7.9 (default, Apr 2 2015, 15:33:21)
[GCC 4.9.2] on linux2
Type help, copyright, credits or license for more information.
 import argparse
 parser = argparse.ArgumentParser()
 parser.add_argument(-s, dest=start)
_StoreAction(option_strings=['-s'], dest='start', nargs=None, const=None, 
default=None, type=None, choices=None, help=None, metavar=None)

 subparsers = parser.add_subparsers()
 subparser = subparsers.add_parser(command)
 subparser.add_argument(-s, dest=start)
_StoreAction(option_strings=['-s'], dest='start', nargs=None, const=None, 
default=None, type=None, choices=None, help=None, metavar=None)

 parser.parse_args([-s, 1, command])
Namespace(start=None)
 parser.parse_args([command, -s, 1])
Namespace(start='1')

--
components: Argument Clinic
messages: 243700
nosy: hhuang, larry
priority: normal
severity: normal
status: open
title: Different behavior for argparse between 2.7.8 and 2.7.9 when adding the 
same arguments to the root and the sub commands
type: behavior
versions: Python 2.7

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[issue24251] Different behavior for argparse between 2.7.8 and 2.7.9 when adding the same arguments to the root and the sub commands

[Hao Huang]

Hao Huang added the comment:

I think this patch cause the difference:
https://hg.python.org/cpython/rev/1a3143752db2

--

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[issue24251] Different behavior for argparse between 2.7.8 and 2.7.9 when adding the same arguments to the root and the sub commands

[Ned Deily]

Changes by Ned Deily n...@acm.org:


--
components: +Library (Lib) -Argument Clinic
nosy: +bethard, r.david.murray -larry

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[issue24251] Different behavior for argparse between 2.7.8 and 2.7.9 when adding the same arguments to the root and the sub commands

[smparkes]

Changes by smparkes smpar...@smparkes.net:


--
nosy: +smparkes

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