dave-shawley/setupext-pip — pull request #4 by dave-shawley (2014-08-02 17:03:59+00:00)
Title: Make empty `setup_requires` work.

Running the `requirements` command without requirements shouldn't do anything. The previous release would fail if the `setup_requires` keyword wasn't specified and would run the underlying pip machinery when an empty list was specified. This PR changes that so that it does nothing more than emit a warning when it does not have requirements to install.