This has been failing to install with this message, which I think
means we need to change our URL for getting pip:
The URL you are using to fetch this script has changed, and this one
will no longer work. Please use get-pip.py from the following URL
instead:
https://bootstrap.pypa.io/pip/2.7/get-pip.py
Sorry if this change causes any inconvenience for you!
Change-Id: Id62e91b1609db4b1d2fa425010bac1ce77e9fc51
(cherry picked from commit fc7f929597)
(cherry picked from commit 1400e6f1c3)
302ede617a