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Need Multiple Versions of Python Using Virutalenvwrapper-win and Virtualenv

Posted on 2016-10-06
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I have 2 versions of Python installed on my Windows 7 box and now I need to test using each version to see which works the best.  I set up virtualenv and virtualenvwrapper-win following this guide.  
http://timmyreilly.azurewebsites.net/python-pip-virtualenv-installation-on-windows/

Can anyone tell me how to use the non default python in my existing virtualenv.

Using a Mac I am able to do this and have many versions of python I can draw from.

Thanks,
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Question by:sharingsunshine
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by:Walter Ritzel
ID: 41832827
In windows, if you are using virtualenv, you should call the activate.bat script, which is located at the Scripts folder inside the virtualenv folder.
Example: if you have a virtualenv called testpy27 on c:\work\venvs
c:\work\venvs\testpy27\Scripts\activate.bat

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by:sharingsunshine
ID: 41832862
Thanks for the reply.  I have called the activate.bat script but I am unclear how this will help me to have multiple versions of python?  It just seem to open up the virtualenv called ff2
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Walter Ritzel earned 2000 total points
ID: 41833372
Each virtualenv that you create could have a different version of Python, so when a specific virtualenv is activated, you will be running a specific version of it.
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by:sharingsunshine
ID: 41834389
Thanks for the explanation which helped me to look a little deeper on the net to find the proper syntax.  From the same blog as I reference above, I found this explanation.

mkvirtualenv --python=C:\Python35-32\python.exe pythonthreeEnv

‘pythonthreeEnv’ is the name of my environment. 

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which can be found at http://timmyreilly.azurewebsites.net/setup-a-virtualenv-for-python-3-on-windows/
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Author Closing Comment

by:sharingsunshine
ID: 41834391
Thanks for the help.
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