[Pytest-commit] Issue #179: Tox messes around with system-wide python install for no reason, breaks (hpk42/tox)

[TonasJ]

New issue 179: Tox messes around with system-wide python install for no reason, breaks
https://bitbucket.org/hpk42/tox/issue/179/tox-messes-around-with-system-wide-python

TonasJ:

What did I do:

I downloaded python 3.4.
I compiled it (but didn't install it).

I did ./python -m venv --clear /home/jonas/Develop/miraclecrafter/py34venv/ to create a virtualenv.

I installed tox inside.

The tox.ini I am working with has this envlist:
[tox]
envlist=py34

.. and this interpreter info:
[testenv:py34]
basepython=/home/jonas/Develop/miraclecrafter/py34venv/bin/python

What happened?

When I try to run tox, it tries to access /usr/bin/python anyway which doesn't even have virtualenv installed. For whatever random reason. Unsurprisingly, it falls flat on the face:

(py34venv) jonas at cyberman#0: tox
GLOB sdist-make: /home/jonas/Develop/miraclecrafter/setup.py
py34 create: /home/jonas/Develop/miraclecrafter/.tox/py34
ERROR: invocation failed, logfile: /home/jonas/Develop/miraclecrafter/.tox/py34/log/py34-0.log
ERROR: actionid=py34
msg=getenv
cmdargs=['/usr/bin/python', '-mvirtualenv', '--setuptools', '--python', '/home/jonas/Develop/miraclecrafter/py34venv/bin/python', 'py34']
env={'GNOME_DESKTOP_SESSION_ID': 'this-is-deprecated', 'LESSOPEN': '||/usr/bin/lesspipe.sh %s', 'QT_IM_MODULE': 'ibus', 'LOGNAME': 'jonas', 'USER': 'jonas', 'GNOME_KEYRING_CONTROL': '/run/user/1000/keyring-juNaSm', 'XDG_VTNR': '1', 'QTDIR': '/usr/lib/qt-3.3', 'PS1': '(py34venv) \\u@\\h#\\l: ', 'WINDOWPATH': '1', 'LANG': 'en_US.UTF-8', 'QTLIB': '/usr/lib/qt-3.3/lib', 'TERM': 'xterm', 'SHELL': '/bin/bash', 'XAUTHORITY': '/run/gdm/auth-for-jonas-tFALE0/database', 'SESSION_MANAGER': 'local/unix:@/tmp/.ICE-unix/1543,unix/unix:/tmp/.ICE-unix/1543', 'QTINC': '/usr/lib/qt-3.3/include', 'HISTSIZE': '1000', 'WINDOWID': '38070893', 'XMODIFIERS': '@im=ibus', 'PYTHONHASHSEED': '3820106888', 'SVN_EDITOR': '/usr/bin/vimx', 'HOME': '/home/jonas', 'USERNAME': 'jonas', 'XDG_RUNTIME_DIR': '/run/user/1000', 'SSH_AUTH_SOCK': '/run/user/1000/keyring-juNaSm/ssh', 'VIRTUAL_ENV': '/home/jonas/Develop/miraclecrafter/py34venv', 'VTE_VERSION': '3409', 'PATH': '/home/jonas/Develop/miraclecrafter/.tox/py3
 4/bin:/home/jonas/Develop/miraclecrafter/py34venv/bin:/usr/lib/qt-3.3/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin', 'XDG_MENU_PREFIX': 'gnome-', 'QT_GRAPHICSSYSTEM_CHECKED': '1', 'XDG_SESSION_ID': '1', 'DBUS_SESSION_BUS_ADDRESS': 'unix:abstract=/tmp/dbus-z0Vg5HGDXS,guid=9a1dfc2cf5c2a67eb0def58253a3d9c2', '_': '/usr/bin/tox', 'GDMSESSION': 'gnome', 'DESKTOP_SESSION': 'gnome', 'GPG_AGENT_INFO': '/run/user/1000/keyring-juNaSm/gpg:0:1', 'DISPLAY': ':0', 'GNOME_KEYRING_PID': '1541', 'OLDPWD': '/home/jonas/Develop/miraclecrafter/py34venv', 'HOSTNAME': 'cyberman', 'GDM_LANG': 'en_US.UTF-8', 'HISTCONTROL': 'ignoreboth', 'SHLVL': '2', 'PWD': '/home/jonas/Develop/miraclecrafter', 'COLORTERM': 'gnome-terminal', 'MAIL': '/var/spool/mail/jonas', 'LS_COLORS': 'rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arj=01;31:*.taz=01;31:*.lzh=01;31:*.
 lzma=01;31:*.tlz=01;31:*.txz=01;31:*.zip=01;31:*.z=01;31:*.Z=01;31:*.dz=01;31:*.gz=01;31:*.lz=01;31:*.xz=01;31:*.bz2=01;31:*.bz=01;31:*.tbz=01;31:*.tbz2=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.war=01;31:*.ear=01;31:*.sar=01;31:*.rar=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.jpg=01;35:*.jpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.svg=01;35:*.svgz=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.webm=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.vob=01;35:*.qt=01;35:*.nuv=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.flv=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.yuv=01;35:*.cgm=01;35:*.emf=01;35:*.axv=01;35:*.anx=01;35:*.ogv=01;35:*.ogx=01;35:*.aac=00;36:*.au=00;36:*.flac=00;36:*.mid=00;36:*.midi=00;36:*.mka=00;36:*.mp3=00;36:
 *.mpc=00;36:*.ogg=00;36:*.ra=00;36:*.wav=00;36:*.axa=00;36:*.oga=00;36:*.spx=00;36:*.xspf=00;36:', 'XDG_SEAT': 'seat0'}
/usr/bin/python: No module named virtualenv

ERROR: InvocationError: /usr/bin/python -mvirtualenv --setuptools --python /home/jonas/Develop/miraclecrafter/py34venv/bin/python py34 (see /home/jonas/Develop/miraclecrafter/.tox/py34/log/py34-0.log)
___________________________________ summary ____________________________________
ERROR:   py34: InvocationError: /usr/bin/python -mvirtualenv --setuptools --python /home/jonas/Develop/miraclecrafter/py34venv/bin/python py34 (see /home/jonas/Develop/miraclecrafter/.tox/py34/log/py34-0.log)
(py34venv) jonas at cyberman#0:


So why is this? I didn't even install tox outside the virtualenv. The only test environment py34 I used has an explicit interpreter path to the virtualenv binary. Everything would be available inside there - but tox thinks it needs to touch the system python. Please fix or provide advise on how to avoid.