Comment 5 for bug 1277495

A bit of extra detail...

We're running pip 1.4.1 in the virtualenv where this error occurs:

fungi@precisepy3k-1:~$ /home/jenkins/workspace/gate-python-cinderclient-python33/.tox/py33/bin/pip --version
pip 1.4.1 from /home/jenkins/workspace/gate-python-cinderclient-python33/.tox/py33/lib/python3.3/site-packages (python 3.3)

And the setuptools 2.0.2 PKG-INFO file was indeed ASCII while 2.1.2's is not:

fungi@static:~$ file setuptools-2.[01].2/setuptools.egg-info/PKG-INFO
setuptools-2.0.2/setuptools.egg-info/PKG-INFO: ASCII English text, with CRLF line terminators
setuptools-2.1.2/setuptools.egg-info/PKG-INFO: UTF-8 Unicode English text, with CRLF line terminators

It looks like the addition of Tarek Ziadé to the credits is triggering this.