Provide a clean command to setup.py

[ghisvail]

Please consider providing an appropriate clean command to your setup.py. There are quite a few files which are generated by the build system (version.py + cythonized files) and are not appropriately cleaned after running python setup.py clean.

[ghisvail]

Also, running python setup.py clean should not trigger a cythonization, as it is the case now. Instead, you should encapsulate the call to cython within a custom build_ext command.

[nouiz]

would be interresting to add for 0.6.10 release, but I'm not sure we will have the time to do it ourself. If someone have the time to do it, that would make sure it get it.

[deepali-c]

Please advise if we can use git clean -dfX to implement this?

[ghisvail]

No, python setup.py clean should handle it.

git clean only works for git repositories. It won't work for source files extracted from the release tarball on PyPI, which is the canonical source used by Linux distributions for generating packages.

[nouiz]

We don't have time for that in the short term. A PR would be welcome to get this done faster.

[abergeron]

Done in #529