Sphinx handling sphinx and python versions

[jacktose]

This fixes both parts of #1825 by checking the versions of sphinx and python before doing version-specific things.

[Dunbaratu]

Issue #1825 got closed without this PR being merged, which was supposed to have been the PR that would fix 1825. Can you elaborate?

[jacktose]

Oh, huh. It got closed by PR #1834, but it doesn't look like any of those commits address the versioning issues. Maybe someone got confused because I submitted two different PRs at about the same time?

Has anyone attempted to replicate issue #1825 since that update?
If need be, I will when I have a minute.

[Dunbaratu]

I am not in a position to test this because I'm not willing to upgrade to python 3 on account of other stuff I'm still using 2.x for that has similar forward-incompatibility issues.

[jacktose]

Okay, updated to the current develop branch and tried again. I can replicate the issue.

[Dunbaratu]

I can replicate the issue.

meaing? The problem still exists in develop and we still need to apply this PR?
Again, the problem is I can't do much to test this beyond making sure it doesn't break older installs and thus doesn't make things worse. I guess that's the minimum criteria to make it acceptable to merge.

[jacktose]

meaing? The problem still exists in develop and we still need to apply this PR?

Meaning exactly that! I commented on the issue to clarify.

I can't do much to test this beyond making sure it doesn't break older installs

I really hope you will, because I can't feasibly downgrade to Python 2.

[Dunbaratu]

Verified that it doesn't break my older sphinx/python setup, so I accepted and merged it.