ipython installed in virtualenv seems not to use virtualenv

Gelonida N gelonida at gmail.com
Thu Aug 11 12:04:54 CEST 2011


On 08/11/2011 11:39 AM, becky_lewis wrote:
> Hi,
> 
> are you doing a pip install from within your virtualenv (sourcing the
> virtualenv and THEN installing ipython)?
> 

Yes this is what I was doing.

My default ipython without virtualenv is now:
$ ipython -V
0.10

Within my virualenv it is now:
$ ipython --version
0.11


which ipython
indicates also, that is well placed in my virtual env's tree


I forced a reinstall of the library, that was found by my virtualenv
python, but was NOT found by my virtualenv ipython.

and now everything works fine.

This is weird. But I'm glad it's working now.


Tried to reproduce the issue  on another (rather similiar machine), but
couldn't



> Becky Lewis
> 
> 
> On Aug 11, 9:59 am, Gelonida N <gelon... at gmail.com> wrote:
>> Hi,
>>
>> Short version
>> ==============
>> I have a system with ipython installed by my Ubuntu distribution
>> I created a virtualenv with> virtualenv ~/myenv
>> I installed ipython
>>> pip install ipython --upgrade
>>
>> When using ipython I notice, that it does import the modules from my
>> default python setup and not from  my virtualenv.
>>
>> Why?
>> What could I have done differently?
>>
>> Long version
>> ===================
>>
>> I created a  virtualenv with
>>
>> virtualenv ~/myenv
>>
>> THis inherits my machines site packages.
>> The reason I'm not using
>>
>> virutalenv --no-site-packages ~/myenv
>>
>> is that I would like to use some of the site packages,
>> in particular some, that I don't want to compile due to huge package
>> dependencies.
>>
>> Small problem is, that if I run ipython in a virtualenv
>> it will still call /usr/bin/ipython
>>
>> and if I check the modules, that I import I seem to import the modules
>> of my default environment and not the ones of my virtualenv.
>>
>> So I decided I will install my own version of ipython in my virtualenv
>>
>> The output if pip install ipython is a little confusing.
>>
>>> Requirement already satisfied (use --upgrade to upgrade): ipython in /usr/lib/pymodules/python2.6
>>
>> As I am a normal user and I don't have permissions to overwrite /usr/lib
>> I decided to just give it a try and hope it will install in my
>> virtualenv path and not in /usr/lib/...
>>
>> After running
>>
>>> pip install ipython --upgrade
>>
>> I have my own version of ipython.
>>
>> However when calling and using it I notice it still imports the modules
>> from my default python and not from my virtualenv?
>>
>> Why does ipython ignore the virtualenv's settings?
>>
>> I know there are workarounds, but I wondered why it doesn't work out of
>> the box.
> 





More information about the Python-list mailing list