Code review comment for lp:~ericsnowcurrently/fake-juju/fix-makefile-python-path

I was able to see "dpkg-buildpackage -b" fail prior to this branch on the py-install target. And after merging this branch dpkg-buildpackage -b succeeds.

As per your test instructions, I also hit the same issue Francis reported,

I can't make py-install target on fresh yakkety or xenial systems.
cd python; python setup.py test also fails with the same traceback.

pip can't find "yaml" requirement for some reason.

running test
Searching for yaml
Reading https://pypi.python.org/simple/yaml/
No local packages or working download links found for yaml
error: Could not find suitable distribution for Requirement.parse('yaml')