Can't install pinned version of six or appdirs (from source)

[jimfulton]

benjaminp/six#188

We could probably go the pip route and put the distribution directory first, but then we wouldn't be able to install pinned versions of six (or anything else) with versions of six earlier than whatever setuptools requires.

A workaround is to use wheels, when they're available. The earliest version of six with a wheel is 1.5. I ran into this trying to install 1.1.

[jimfulton]

"A workaround is to use wheels, when they're available. The earliest version of six with a wheel is 1.5. I ran into this trying to install 1.1."

Well, no, because the extension depends on six and if we have a version pin for some version other than what we have, we'll try to install it before installing the wheel extension, which means trying to install the source release. whimper.

[leorochael]

PRs stopping the importing of the package in setup.py:

• Don't import appdirs from setup.py ActiveState/appdirs#92
• Fix more issues with setuptools externally depending on six benjaminp/six#190

[jimfulton]

Thanks!