Before closing that task I think there are a few other lingering issues that should be resolved:

• appveyor builds should be integrated
• clean should be tweaked

@jdeschenes: I think this can be closed now but I don't know what you mean by "clean should be tweaked".

Hi @jwiggins, it's been a while! This is an embarassingly terse comment, sorry about that. I am afraid I do not fully recall.

My guess is it could be related to the clean method

python setup.py clean

It does not fully clean the build artifacts(e.g. _celiagg.cpp is not cleaned up)
This was a pain point for me a few years back. Sometimes, even though I made some code changes, no change were detected and thus no cythonization occurred. I was compiling against an old version of the code. I was manually deleting the cython generated files. Cleaning is significantly more convenient.

I had implemented some logic to delete the cython generated files when invoking clean so that I could be sure that I was using the latest and greatest on some of my projects.

The pandas project is doing something that resembles what I implemented in my projects.

As far as I can tell, this is not a specific problem with Windows.

I hope that was helpful.

Thanks for clarifying. I also deal with that problem when I develop and it's not platform specific. (I've just been using git clean before rebuilding).