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For UNIX, it is said that if shell=False then you need to pass `args` as a list (if you want to pass any parameters to executable). Is that true for Windows (and perhaps other platforms) as well?
Again, for UNIX it is said that with shell=True, and args is a list - every item except the first one is an argument to the shell itself. Is it the same on Windows?
It would be better to just give advice in `shell` parameter description to "pass args as a list with shell=False or else you'll lose params in Unix. If shell=True you need to pass args as a string, because list is needed only if you need to pass arguments to shell itself."

See also issues #7839, #8972 and #10197.

Looks like a can of worms. For now I'll be pretty fine if this stuff is at least properly documented.

> For now I'll be pretty fine if this stuff is at least
> properly documented.
Can you propose a document patch describing the current behaviour?

Certainly not right now as I don't have development environment setup. Perhaps in a few days if somebody pings me. It could be a lot easier with online editor, of course - http://code.google.com/p/pydotorg/issues/detail?id=6 

> Certainly not right now as I don't have development environment setup
See our development guide to get such environment:
http://docs.python.org/devguide/setup.html
> It could be a lot easier with online editor
Would like like to work on this project? (provide an online editor)

On Mon, Oct 17, 2011 at 3:24 PM, STINNER Victor <report@bugs.python.org> wrote:
>
>> Certainly not right now as I don't have development environment setup
>
> See our development guide to get such environment:
> http://docs.python.org/devguide/setup.html
I know. There is better tool at
https://bitbucket.org/techtonik/devinabox but I have only 500Mb left
on my system drive and there are still more problems I need to handle.
>> It could be a lot easier with online editor
>
> Would like like to work on this project? (provide an online editor)
Do you mean would I like to work on it? Actually, I made a prototype
on AppEngine that waits for JS guru to tune CodeMirror interface. If
somebody is interested to help, I've just uploaded the code to
http://code.google.com/p/pydotorg/source/browse/?repo=doceditor 

I think the documentation changes made for Issue 16115 should address your first question (shell=False). For shell=True, see the discussion at Issue 20344. Perhaps you can review my patch.