Summary
When in editable mode (pip install -e .) faraday-proxy will only run from the main git repo software directory. This is because the current code on faraday/proxy.py lines 32-35 assume either a hard-coded location relative to the main folder or system/user folders only generated when installing from a PyPi package.
Current thought 6/18/2017 is to document this issue and move on. It's slightly annoying when installed in editable mode but less important than pushing forward.
Problem Explanation
Summary captures it all. Some more background here
Environment
Software
Python 2.7 on Windows, should be the same on all OS's
Hardware
Normal Faraday hardware or test mode will experience this problem.
Supporting Information
N/A