pypa/pip — pull request #1743 by qwcode (2014-04-22 06:16:30+00:00)
Title: don't install empty dirs during wheel installs

a fix for #1632

note that I'm wanting to start a trend here of commiting the src for test packages (when it's something we've constructed) to tests/data/src, and in general use src for project src, and leave packages just for packages.