[issue32036] error mixing positional and non-positional arguments with `argparse`

2017-11-15 Thread R. David Murray 

R. David Murray  added the comment:

Ah, yes, I'd managed to forget about that issue, even though I was the one that 
finally committed the fix.

So, the alternate parser will be in 3.7.  In the meantime you can grab the code 
from the commit and put it in a local file, I think.  You'll doubtless have to 
tweak a few things to use it that way, but it should be fairly straightforward.

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resolution:  -> out of date
stage:  -> resolved
status: open -> closed

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[issue32036] error mixing positional and non-positional arguments with `argparse`

2017-11-15 Thread Stefan Seefeld 

Stefan Seefeld  added the comment:

It looks like https://bugs.python.org/issue14191 is a conversation about the 
same inconsistent behaviour. It is set to "fixed". Can you comment on this ? 
Should I follow the advice mentioned there about how to work around the issue ?

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[issue32036] error mixing positional and non-positional arguments with `argparse`

2017-11-15 Thread Stefan Seefeld 

Stefan Seefeld  added the comment:

On 15.11.2017 12:54, R. David Murray wrote:
> Can you reproduce this without your PosArgsParser?
I can indeed (by simply commenting out the `action` argument to the
`add_argument()` calls).
That obviously results in all positional arguments being accumulated in
the `goal` member, as there is no logic to distinguish `a` from `a=b`
semantically.

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[issue32036] error mixing positional and non-positional arguments with `argparse`

2017-11-15 Thread R. David Murray 

R. David Murray  added the comment:

Can you reproduce this without your PosArgsParser?

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[issue32036] error mixing positional and non-positional arguments with `argparse`

2017-11-15 Thread Stefan Seefeld 

New submission from Stefan Seefeld :

I'm trying to mix positional and non-positional arguments with a script using 
`argparse`, but I observe inconsistent behaviour.
The attached test runs fine when invoked with

test_argparse.py --info a a=b
test_argparse.py a a=b --info

but produces the error `error: unrecognized arguments: a=b` when invoked as

test_argparse.py a --info a=b

Is this intended behaviour ? If yes, is this documented ? If not, is there a 
way to make this work with existing `argparse` versions ?

--
components: Library (Lib)
files: test_argparse.py
messages: 306283
nosy: stefan
priority: normal
severity: normal
status: open
title: error mixing positional and non-positional arguments with `argparse`
type: behavior
Added file: https://bugs.python.org/file47268/test_argparse.py

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