tox fails with pip 10
Trying to run tox
in a fresh stem
workspace (no .tox
dir, which contains the virtualenvs) now fails.
Failure output with pip 10:
no such option: --allow-all-external
ERROR: InvocationError: 'path/to/pip install --allow-all-external -e .'
Here's a deprecation note from a tox / pip 9 virtualenv:
py27 runtests: commands[0] | pip install --allow-all-external -e .
DEPRECATION: --allow-all-external has been deprecated and will be removed in the future. Due to changes in the repository protocol, it no longer has any effect.
With pip 10 (somewhat recently released), this --allow-all-external
flag seemingly got removed.
**atagar: I'll have a patch for this shortly! **