Comment 13 for bug 954595

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Barry Warsaw (barry) wrote : Re: [Bug 954595] Re: ImportError: cannot import name urandom from os

On Apr 27, 2012, at 09:33 AM, Natim wrote:

>Same for me, I needed to remake all my virtualenv

This is a known release issue with upstream Python 2.7.3. The cause is the
security fix for the hash randomization DoS vulnerability. You will need to
re-run virtualenv in order to pick up the security fix.