BUG: Pytest 3.10 doesn't parse minversion correctly

[bashtage]

Pytest 3.10 doesn't correctly parse minversion correctly. I have

[tool:pytest]
minversion = 3.6

in setup.cfg and see ERROR: setup.cfg:16: requires pytest-3.6, actual pytest-3.10.0'

Changing 3.6 to 3.06 fixes the problem, but this isn't consistent versioning.

Should correctly pass if if LooseVersion accepts the strings.

from distutils.version import LooseVersion
LooseVersion('3.10') > LooseVersion('3.6')

Out[3]: True

Here's a quick checklist in what to include:

• Include a detailed description of the bug or suggestion
• pip list of the virtual environment you are using
• pytest and operating system versions
• Minimal example if possible

[bashtage]

A travis run that failed with this error:

https://travis-ci.org/bashtage/linearmodels/jobs/450526245

[RonnyPfannschmidt]

should use a pkg_ressources version