Upstream OpenStack is starting to use requirements file syntax such as the following to target specific python versions:
Routes!=2.0,!=2.1,>=1.12.3;python_version=='2.7'
Older pip versions don't understand this and as a result won't install the requirement.
By default virtualenv's on trusty install a pretty old version of pip. This patch upgrades pip after creating the virtualenv.
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Upstream OpenStack is starting to use requirements file syntax such as the following to target specific python versions:
Routes! =2.0,!= 2.1,>=1. 12.3;python_ version= ='2.7'
Older pip versions don't understand this and as a result won't install the requirement.
By default virtualenv's on trusty install a pretty old version of pip. This patch upgrades pip after creating the virtualenv.