Mailman 3 May 2018 - tox-dev

EuroPython 2018: help desk
by Oliver Bestwalter 31 May '18

31 May '18

Hi, I will be attending the EuroPython and just submitted the same proposal like last year to run a pytest/tox/devpi helpdesk. Last year was fun and most people who came had not much experience with the tools yet and were looking for some help introducing automated testing in their projects. If any of you are also there and would like to hang out with me and help some folks to get their questions answered, I would be happy. I will let you know if the proposal was accepted. Cheers, Oliver

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New to tox; seeing strange behavior creating venvs
by Fred Drake 09 May '18

09 May '18

So for years I worked in a buildout shop, and now I'm in a Debian-packages-are-good-enough shop, and I'm looking to improve that situation. For some of my libraries at work, I want to get cross-version testing straightened out a bit, and tox seems to be the state of the art. (Yes, Python 2.7 is part of the mix, but getting past that means getting library tests running on Python 3 before we tackle applications.) I'm using a fairly simple tox.ini file, defining three environments built on top of "clean" Python installations: ------------------------ [tox] envlist = py27,py35,py36 [testenv] commands = python -m unittest discover -p *tests.py -p *test.py install_command = pip install -r tox-requirements.txt {opts} {packages} [testenv:py27] basepython = /opt/kt-python27/bin/python2 [testenv:py35] basepython = /opt/kt-python35/bin/python3 [testenv:py36] basepython = /opt/kt-python36/bin/python3 ------------------------ The tox-requirements.txt is pretty minimal, and doesn't do anything particularly interesting, but does include options to use a local DevPI server instead of PyPI. My project has a venv based on my clean python 3.6 installation. tox is installed into the venv. When running bin/tox, tox creates an sdist for my library package, then creates the venvs and installs my package into them. When nearly complete, the installation fails because of an attempt to write a script into the system /usr/bin, which shouldn't happen in the venv: ------------------------ GLOB sdist-make: /home/fdrake/p/ks3.mediaflux/setup.py py27 create: /home/fdrake/p/ks3.mediaflux/.tox/py27 py27 inst: /home/fdrake/p/ks3.mediaflux/.tox/dist/ks3.mediaflux-3.5.0.zip ERROR: invocation failed (exit code 1), logfile: /home/fdrake/p/ks3.mediaflux/.tox/py27/log/py27-1.log ERROR: actionid: py27 msg: installpkg cmdargs: ['/home/fdrake/p/ks3.mediaflux/.tox/py27/bin/pip', 'install', '-r', 'tox-requirements.txt', '/home/fdrake/p/ks3.mediaflux/.tox/dist/ks3.mediaflux-3.5.0.zip'] Looking in indexes: http://devpi/root/pypi/+simple/, http://devpi/keeper/keepertech/+simple/ Processing ./.tox/dist/ks3.mediaflux-3.5.0.zip ... Successfully built ks3.mediaflux Installing collected packages: six, funcsigs, pbr, mock, idna, chardet, certifi, urllib3, requests, kt.testing, zc.lockfile, kt.common, pytz, itsdangerous, Werkzeug, click, MarkupSafe, Jinja2, Flask, aniso8601, flask-RESTful, netaddr, kt.restful, ks3.mediaflux Could not install packages due to an EnvironmentError: [Errno 13] Permission denied: '/usr/bin/pbr' Consider using the `--user` option or check the permissions. ------------------------ If I manually cd into .tox/py27 and running bin/pip install -r ../../tox-requirements.txt succeeds, and there's no attempt to write into /usr/bin/. Doing that for each of the environments allows tox to run the tests and produce the expected summary. At this point, I presume I've done some ridiculous in my configuration somewhere. Is there something obvious to others that I'm just missing because I'm not familiar with the tools? Thanks! -Fred -- Fred L. Drake, Jr. <fred at fdrake.net> "A storm broke loose in my mind." --Albert Einstein

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rtox : remote tox-ing to keep you laptop battery up
by Sorin Ionuț Sbârnea 04 May '18

04 May '18

I wanted to share a little tool call rtox which is mainly a wrapper for tox which delegates all executions to another remote machine. I use it daily because my main machine is a laptop and I always find much faster to run tox on a remote machine that has better CPU/RAM/SSD. https://github.com/pycontribs/rtox <https://github.com/pycontribs/rtox> -- main page should be more than enough. Shortly, when you want to run remote you just add [r] before tox. I hope you will find it useful. Cheers Sorin

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