[TIP] tox-2.0.0: plugin support, platforms, env isolation

Tue May 12 15:58:46 PDT 2015

Hi Alex,

On Tue, May 12, 2015 at 18:51 -0400, Alex Gaynor wrote:
> Hi Holger,
> 
> First: congrats on shipping 2.0, I'm very excited to explore some of the
> new features.
> 
> Second:
> 
> Did tox drop Python 2.6 support? It started failing on our CI, so far the
> error I see is that tox imports argparse, but I guess it's setup.py does
> not depend on it. Can this be fixed?

Hum, that's probably a problem of the wheel format.  Can you try installing
with "--no-use-wheel" and see if that helps?

holger

> Thanks!
> Alex
> 
> On Tue, May 12, 2015 at 5:46 PM, holger krekel <holger at merlinux.eu> wrote:
> 
> > tox-2.0: plugins, platform, env isolation
> > ==========================================
> >
> > tox-2.0 was released to pypi, a major new release with *mostly*
> > backward-compatible enhancements and fixes:
> >
> > - experimental support for plugins, see
> > https://testrun.org/tox/dev/plugins.html
> >   which includes also a refined internal registration mechanism for new
> > testenv
> >   ini options.  You can now ask tox which testenv ini parameters exist
> >   with ``tox --help-ini``.
> >
> > - ENV isolation: only pass through very few environment variables from the
> >   tox invocation to the test environments.  This may break test runs that
> >   previously worked with tox-1.9 -- you need to either use the
> >   ``setenv`` or ``passenv`` ini variables to set appropriate environment
> >   variables.
> >
> > - PLATFORM support: you can set ``platform=REGEX`` in your testenv sections
> >   which lets tox skip the environment if the REGEX does not match
> > ``sys.platform``.
> >
> > - tox now stops execution of test commands if the first of them fails
> > unless
> >   you set ``ignore_errors=True``.
> >
> > Thanks to Volodymyr Vitvitski, Daniel Hahler, Marc Abramowitz, Anthon van
> > der Neuth and others for contributions.
> >
> > More documentation about tox in general:
> >
> >     http://tox.testrun.org/
> >
> > Installation:
> >
> >     pip install -U tox
> >
> > code hosting and issue tracking on bitbucket:
> >
> >     https://bitbucket.org/hpk42/tox
> >
> > What is tox?
> > ----------------
> >
> > tox standardizes and automates tedious test activities driven from a
> > simple ``tox.ini`` file, including:
> >
> > * creation and management of different virtualenv environments
> >   with different Python interpreters
> > * packaging and installing your package into each of them
> > * running your test tool of choice, be it nose, py.test or unittest2 or
> > other tools such as "sphinx" doc checks
> > * testing dev packages against each other without needing to upload to PyPI
> >
> > best,
> > Holger Krekel, merlinux GmbH
> >
> > --
> > about me:    http://holgerkrekel.net/about-me/
> > contracting: http://merlinux.eu
> >
> > 2.0.0
> > -----------
> >
> > - (new) introduce environment variable isolation:
> >   tox now only passes the PATH and PIP_INDEX_URL variable from the tox
> >   invocation environment to the test environment and on Windows
> >   also ``SYSTEMROOT``, ``PATHEXT``, ``TEMP`` and ``TMP`` whereas
> >   on unix additionally ``TMPDIR`` is passed.  If you need to pass
> >   through further environment variables you can use the new ``passenv``
> > setting,
> >   a space-separated list of environment variable names.  Each name
> >   can make use of fnmatch-style glob patterns.  All environment
> >   variables which exist in the tox-invocation environment will be copied
> >   to the test environment.
> >
> > - a new ``--help-ini`` option shows all possible testenv settings and
> >   their defaults.
> >
> > - (new) introduce a way to specify on which platform a testenvironment is
> > to
> >   execute: the new per-venv "platform" setting allows to specify
> >   a regular expression which is matched against sys.platform.
> >   If platform is set and doesn't match the platform spec in the test
> >   environment the test environment is ignored, no setup or tests are
> > attempted.
> >
> > - (new) add per-venv "ignore_errors" setting, which defaults to False.
> >    If ``True``, a non-zero exit code from one command will be ignored and
> >    further commands will be executed (which was the default behavior in
> > tox <
> >    2.0).  If ``False`` (the default), then a non-zero exit code from one
> > command
> >    will abort execution of commands for that environment.
> >
> > - show and store in json the version dependency information for each venv
> >
> > - remove the long-deprecated "distribute" option as it has no effect these
> > days.
> >
> > - fix issue233: avoid hanging with tox-setuptools integration example.
> > Thanks simonb.
> >
> > - fix issue120: allow substitution for the commands section.  Thanks
> >   Volodymyr Vitvitski.
> >
> > - fix issue235: fix AttributeError with --installpkg.  Thanks
> >   Volodymyr Vitvitski.
> >
> > - tox has now somewhat pep8 clean code, thanks to Volodymyr Vitvitski.
> >
> > - fix issue240: allow to specify empty argument list without it being
> >   rewritten to ".".  Thanks Daniel Hahler.
> >
> > - introduce experimental (not much documented yet) plugin system
> >   based on pytest's externalized "pluggy" system.
> >   See tox/hookspecs.py for the current hooks.
> >
> > - introduce parser.add_testenv_attribute() to register an ini-variable
> >   for testenv sections.  Can be used from plugins through the
> >   tox_add_option hook.
> >
> > - rename internal files -- tox offers no external API except for the
> >   experimental plugin hooks, use tox internals at your own risk.
> >
> > - DEPRECATE distshare in documentation
> >
> >
> > _______________________________________________
> > testing-in-python mailing list
> > testing-in-python at lists.idyll.org
> > http://lists.idyll.org/listinfo/testing-in-python
> >
> 
> 
> 
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-- 
about me:    http://holgerkrekel.net/about-me/
contracting: http://merlinux.eu