flit6

Cross-compat flit install. Flit doesn't support Python 2 at all, but authors of cross-compat libs might still want to use flit's packaging for the simplicity. After pip install flit6 you can use flit install on Python 2 in your CI, with flit whatever else working as usual on Python 3.

I did not port any of flit itself. This project merely subprocesses a Python 3 build of your project, and then installs the generated distribution into the Python 2 environment. That requires flit to exist in the python3 runtime, for build. An example of how to set it up the yaml for travis-ci can be seen here.

dev

Clone the repo and then:

$ pip install pytest pytest-mock
$ pytest

To generate a release, use python setup.py bdist_wheel --universal. Upload with twine.