hg hook doesn't allow specification of alternate pep8 config file
This is something desirable so a project can have a version-controlled pep8 configuration on a per-project basis -- allowing for teams to customize which pep8 and pyflakes warnings they want to ignore, custom max-line-length, etc.
Example use case:
[pep8] max-line-length = 80 ignore = E261, E262, E302 show-source = True
[hooks] pretxncommit = python:flake8.run.hg_hook [flake8] strict = 1 complexity = 10 config = ./.config/pep8