pip example with remote whl: https://github.com/singingwolfboy/python-wheelhouse/tree/gh-pages

constraints.txt

aafigure==0.6
alabaster==0.7.10
Babel==2.4.0
certifi==2017.4.17
chardet==3.0.4
colorama==0.3.9
docutils==0.13.1
idna==2.5
imagesize==0.7.1
Jinja2==2.9.6
MarkupSafe==1.0
Pygments==2.2.0
pytz==2017.2
requests==2.18.1
six==1.10.0
snowballstemmer==1.2.1
Sphinx==1.6.3
sphinxcontrib-websupport==1.0.1
urllib3==1.21.1

output.txt

λ  pip install -r .\requirements.txt -c .\constraints.txt
Collecting aafigure==0.6 (from -c .\constraints.txt (line 1))
  Using cached aafigure-0.6-py2.py3-none-any.whl
Collecting Sphinx==1.6.3 (from -c .\constraints.txt (line 17))
  Using cached Sphinx-1.6.3-py2.py3-none-any.whl
Collecting sphinxcontrib-websupport==1.0.1 (from -c .\constraints.txt (line 18))
  Using cached sphinxcontrib_websupport-1.0.1-py2.py3-none-any.whl
Collecting sphinxcontrib-aafig==1.0.dev20150325 from https://singingwolfboy.github.io/python-wheelhouse/sphinxcontrib_aafig-1.0.dev20150325-py2.py3-none-any.whl (from -r .\requirements.txt (line 3))
  Downloading https://singingwolfboy.github.io/python-wheelhouse/sphinxcontrib_aafig-1.0.dev20150325-py2.py3-none-any.whl
Collecting snowballstemmer==1.2.1 (from -c .\constraints.txt (line 16))
  Using cached snowballstemmer-1.2.1-py2.py3-none-any.whl
Collecting docutils==0.13.1 (from -c .\constraints.txt (line 7))
  Using cached docutils-0.13.1-py3-none-any.whl
Collecting imagesize==0.7.1 (from -c .\constraints.txt (line 9))
  Using cached imagesize-0.7.1-py2.py3-none-any.whl
Collecting Jinja2==2.9.6 (from -c .\constraints.txt (line 10))
  Using cached Jinja2-2.9.6-py2.py3-none-any.whl
Requirement already satisfied: setuptools in c:\users\chezo\documents\source\pip-test\venv\lib\site-packages (from Sphinx==1.6.3->-c .\constraints.txt (line 17))
Collecting Babel==2.4.0 (from -c .\constraints.txt (line 3))
  Using cached Babel-2.4.0-py2.py3-none-any.whl
Collecting Pygments==2.2.0 (from -c .\constraints.txt (line 12))
  Using cached Pygments-2.2.0-py2.py3-none-any.whl
Collecting requests==2.18.1 (from -c .\constraints.txt (line 14))
  Using cached requests-2.18.1-py2.py3-none-any.whl
Collecting colorama==0.3.9 (from -c .\constraints.txt (line 6))
  Using cached colorama-0.3.9-py2.py3-none-any.whl
Collecting alabaster==0.7.10 (from -c .\constraints.txt (line 2))
  Using cached alabaster-0.7.10-py2.py3-none-any.whl
Collecting six==1.10.0 (from -c .\constraints.txt (line 15))
  Using cached six-1.10.0-py2.py3-none-any.whl
Collecting MarkupSafe==1.0 (from -c .\constraints.txt (line 11))
Collecting pytz==2017.2 (from -c .\constraints.txt (line 13))
  Using cached pytz-2017.2-py2.py3-none-any.whl
Collecting urllib3==1.21.1 (from -c .\constraints.txt (line 19))
  Using cached urllib3-1.21.1-py2.py3-none-any.whl
Collecting chardet==3.0.4 (from -c .\constraints.txt (line 5))
  Using cached chardet-3.0.4-py2.py3-none-any.whl
Collecting idna==2.5 (from -c .\constraints.txt (line 8))
  Using cached idna-2.5-py2.py3-none-any.whl
Collecting certifi==2017.4.17 (from -c .\constraints.txt (line 4))
  Using cached certifi-2017.4.17-py2.py3-none-any.whl
Installing collected packages: aafigure, alabaster, pytz, Babel, certifi, chardet, colorama, docutils, idna, imagesize, MarkupSafe, Jinja2, Pygments, urllib3, requests, six, snowballstemmer, sphinxcontrib-websupport, Sphinx, sphinxcontrib-aafig
Successfully installed Babel-2.4.0 Jinja2-2.9.6 MarkupSafe-1.0 Pygments-2.2.0 Sphinx-1.6.3 aafigure-0.6 alabaster-0.7.10 certifi-2017.4.17 chardet-3.0.4 colorama-0.3.9 docutils-0.13.1 idna-2.5 imagesize-0.7.1 pytz-2017.2 requests-2.18.1 six-1.10.0 snowballstemmer-1.2.1 sphinxcontrib-aafig-1.0.dev20150325 sphinxcontrib-websupport-1.0.1 urllib3-1.21.1

requirements.txt

Sphinx
aafigure
https://singingwolfboy.github.io/python-wheelhouse/sphinxcontrib_aafig-1.0.dev20150325-py2.py3-none-any.whl 

setup.sh

virtualenv -p pytohn3 venv
source activate venv/bin/activate
pip install -r requirements.txt -c constraints.txt