PyChecker under python's virtualenv

Steve Holden steve at holdenweb.com
Thu Feb 4 01:52:28 CET 2010


Diez B. Roggisch wrote:
> Am 03.02.10 22:46, schrieb soltys:
>> Hi Everybody,
>> I've been doing some test on pythons' virtualenv and recently I've
>> decided to run PyChecker. But I'm having some difficulties with importing
>> modules available only on virtualenv by pychecker. As if it was
>> trying to use systemwide python.
>> I've googled about it, and found nothing in this area.
>> I installed pychecker using python setup.py install
>> from virtualenv. I looked at pychecker script - it uses correct python.
> 
> I doubt that it uses the "correct python", because then you wouldn't
> have the problems you have.
> 
> I don't use pychecker, but pylint. And there, the system-wide command
> uses the system's python - which of course doesn't know anything about
> virtualenv.
> 
> There are two solutions to this problem:
> 
>  - install py(lint|checker) into your virtualenv.

See the OP's original assertion:

>> I installed pychecker using python setup.py install
>> from virtualenv. I looked at pychecker script - it uses correct python.

Isn't that "installing into his virtualenv"?

regards
 Steve

>  - write a wrapper-script that invokes py(lint|checker) with an adapted
> PYTHONPATH environtment variable, based on the venv's sys.path. I do
> that for my epylint-wrapper for emacs. Works flawlessly.
> 
> 
> Diez


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