install_requires = ['xhtml2pdf==0.0.5'],
dependency_links = [
    'https://github.com/chrisglass/xhtml2pdf/archive/28d12fcaafc4c47b13f1f6f42c2bfb73f90cc947.zip#egg=xhtml2pdf-0.0.5'
    ],
Setuptools unable to use link from dependency_links