💚 Update build.py to work with pip 10.0.0
💚 Update build.py to work with pip 10.0.0

Summary:
https://stackoverflow.com/a/49867265/3175586

Test Plan:
[X] Pray it compiles
[X] It builds in Jenkins now

Reviewers: O3 The Q Continuum, brookea

Reviewed By: O3 The Q Continuum, brookea

Subscribers: brookea

Tags: #zorp

Differential Revision: http://phabricator.purduesigbots.com/D90

purduesigbots/pros-cli