Why isn't setup.py dependency_links doing anything?

Question

I have an entry in my setup.py to install a package not hosted on PyPi, that must be compiled using setup.py as it is a C extension. It's not installing when I run python setup.py install, I've checked the logs and I have no idea why.

dependency_links = ['git+https://github.com/liamzebedee/scandir.git#egg=scandir-0.1'],

Answer 1

Turns out that as well as a dependency_links line, I also needed to add the name of the package in an install_requires line, like so:

dependency_links = ['git+https://github.com/liamzebedee/scandir.git#egg=scandir-0.1'],
install_requires = ['scandir'],