Bernát Gábor is currently working on a complete rewrite for tox.

I alpha-tested the latest release (4.0.0a2), and reported a couple of problems.

Within a day Bernát published some fixes on the rewrite branch, and asked me to test it.

That means there is no new package on PyPI, yet.

So, I had to install tox directly from GitHub, to be exact, from the rewrite branch:

pip install git+https://github.com/tox-dev/tox@rewrite

or more general

pip install git+https://github.com/username/repository@branch

Update

Ok, installing from a branch works, but what to do when you want to install from a commit?

How to install a Python package from a commit ID?

This works the same way as described above.

pip install git+https://github.com/gaborbernat/tox@0da060f85e38356afedb240fa4207c4fc6de6276

Thanks

Thanks a lot Sviatoslav for the hint!