testpypi and strange interaction with pip
https://github.com/pypa/pip/issues/913 describes a problem I had installing a package with pip.
https://testpypi.python.org/pypi/pipbugdemo01 is the sample package that demonstrates the bug. The README for the package contains details.
There is some indication that the bug may only exist when installing from testpypi. testpypi appears to be running a different version of the software than the production pypi, so I wonder: if the bug is in testpypi, might it eventually be installed on pypi? In case my conjecture is correct, I declared this bug "major".