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I am trying to get started with Google App Engine. I have python 2.6 installed in my virtual environment which I wanted to use. But Google App Engine supports python2.5. So I want to set up another python virtual environment with python 2.5.

Can you help me how to do exactly that?

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  • I am on Ubuntu 9.10. I am not stuck anywhere. I tried running a sample application on Python 2.6 and it ran fine. But GAE gives me a warning that I am using Python 2.6 and that I should move to Python 2.5. That, I too think, will be wise to avoid any errors due to mismatch of python versions. So I want to make a virtual environment for Python 2.5 for only developing GAE apps. I want to know how to do that? Commented Aug 22, 2011 at 6:30

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Virtualenv lets you specify a python binary to use instead of the default. On your machine, python probably maps to /usr/bin/python, which will be a symlink to /usr/bin/python2.6. If you've got Python 2.5 installed, it will be /usr/bin/python2.5

You can create a virtualenv called envname with virtualenv -p /usr/bin/python2.5 envname

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Do you specifically need a virtual environment?

Why not just Install Python 2.5 along side your existing 2.6 and just use 2.5 for your GAE development.

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Well to keep things separate, it is always better to install python as a virtual environment so that external packages do not conflict. But, if there is no other way, then I think I will have to do that.

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