Trouble running scripts installed by virtualenv-commands on Windows

Question

There's a problem with running installed scripts on Windows which can be seen below

C:\Users\Piotr>where python
C:\program files\Python\2.7\python.exe
C:\Users\Piotr>python c:\program files\Python\2.7\scripts\ve init
[Errno 2] No such file or directory
Is "ve-init" executable in the current path?
C:\Users\Piotr>

I tried to resolve this by following advices in How to run installed python script? question but with no luck:

C:\Users\Piotr>assoc .py
.py=Python.File
C:\Users\Piotr>ftype Python.File
Python.File=c:\program files\Python\2.7\python.exe "%1" %*
C:\Users\Piotr>dir /b "c:\program files\python\2.7\scripts"
easy_install-2.7-script.py
easy_install-2.7.exe
easy_install-script.py
easy_install.exe
pip-2.7-script.py
pip-2.7.exe
pip-script.py
pip.exe
ve-clone
ve-extend
ve-init.py
ve.py
virtualenv-script.py
virtualenv.exe    
C:\Users\Piotr>python c:\program files\Python\2.7\Scripts\ve.py init
[Errno 2] No such file or directory
Is "ve-init" executable in the current path?

I think what's special in this case is that ve script runs command scripts (ve-init, ve-clone etc.) through OS (os.execvp()).

I read the post you linked to. It doesn't look to me like you followed its instructions? You need ve-init to be runnable by windows. How does windows know how to run it if it's not ve-init.py with the correct file association? — agf
– agf, Commented Aug 20, 2011 at 17:14
I followed these instructions but didn't want to make my question too long so I skipped results. Now I added them to my question. — Piotr Dobrogost
– Piotr Dobrogost, Commented Aug 21, 2011 at 20:32
It still looks to me like you're trying to run ve-init when you need to be running ve-init.py -- there is no ve-init in that list. Even with the association you still need the full file name? — agf
– agf, Commented Aug 21, 2011 at 21:12
Right, that's what ve script does (command = 've-%s' % command and then return os.execvp(command, (command, ) + args). I would have to modify these scripts and I'd like to avoid doing this if there's some other way to get it working. — Piotr Dobrogost
– Piotr Dobrogost, Commented Aug 21, 2011 at 21:31
There isn't any way to do this on windows, unless you're using bash in MSYS or something that can interpret the hashbang at the beginning of the file. Otherwise you need the files to have the .py extension or call python explicitly. — agf
– agf, Commented Aug 21, 2011 at 21:34

Piotr Dobrogost · Accepted Answer · 2011-10-02 20:02:05Z

0

The solution is to add .py extension to PATHEXT environment variable so that Python scripts could be run without specifying extension (as long as they are on the PATH).

Nevertheless this is not enough to get virtualenv-commands working on Windows because this package uses Unix specific tools which are not available on Windows.

Funny, I guess the idea behind creating virtualenv-commands was to make it more portable than virtualenvwrapper by not using shell scripts but it seems current implementation supports only Unix.

answered Oct 2, 2011 at 20:02

Piotr Dobrogost

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