scripts/convert_deps.py doesn't handle exact pins correctly

[TomAugspurger]

This should be a double equals:

pandas/ci/requirements-optional-pip.txt

Line 17 in 857515f

openpyxl=2.5.5

conda uses a single, while pip requirements files use double.

[mroeschke]

Since all the refactoring of the scrips, is this still an issue?

[TomAugspurger]

Yeah, I think it's been fixed.