On Fri, 21 Aug 2015 10:39:34 -0500 "Kevin L. Mitchell" <kevin.mitch...@rackspace.com> wrote:
> On Wed, 2015-08-19 at 16:51 -0700, Sylvain Bauza wrote: > > I was writing some tests so I added a contextlib.nested to a > > checked TestCase [1]. Unfortunately, contextlib.nested is no longer > > available in Python3 and there is no clear solution on how to > > provide a compatible import for both python2 and python3: > > - either providing a python3 compatible behaviour by using > > contextlib.ExitStack but that class is not available in Python 2 > > - or provide contextlib2 for python2 (and thus adding it to the > > requirements) > > Actually, there should no longer be a need to use contextlib.nested. > We've explicitly dropped Python 2.6 compatibility, which means we're > expecting compatibility with Python 2.7+ only, and as of Python 2.7, > the 'with' statement supports accepting multiple 'as' clauses. The > contextlib.nested tool was really only necessary to work around that > functionality being missing in Python 2.6, and has been deprecated as > of Python 2.7 because it's no longer necessary. Other option: https://contextlib2.readthedocs.org/en/latest/#contextlib2.ExitStack Which is also in py3.x https://docs.python.org/3/library/contextlib.html#contextlib.ExitStack Might be easier to read than the multiple as clauses and such, use at your own will, but it's in the global-requirements (contextlib2 that is); so use it where applicable imho :) -Josh __________________________________________________________________________ OpenStack Development Mailing List (not for usage questions) Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
