view hgext3rd/topic/compat.py @ 4462:7b13256a6a8e stable

obsexchange: avoid importing io/StringIO module with a different name

Since we're not interested in the whole module, let's shorten the imports and
aviod the lint warnings.

Otherwise pep8-naming complains:

- import io as StringIO: N812 lowercase imported as non lowercase
- import StringIO as io: N813 camelcase imported as lowercase

# Copyright 2017 FUJIWARA Katsunori <[e-mail]>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
"""
Compatibility module
"""
from __future__ import absolute_import

from mercurial import (
    obsolete,
)

getmarkers = None
successorssets = None
try:
    from mercurial import obsutil
    getmarkers = getattr(obsutil, 'getmarkers', None)
    successorssets = getattr(obsutil, 'successorssets', None)
except ImportError:
    pass

if getmarkers is None:
    getmarkers = obsolete.getmarkers
if successorssets is None:
    successorssets = obsolete.successorssets