I'm trying to setup CI builds on Appveyor, see here. The Python 3 (3.5, 3.6, and 3.7) builds seem to be fine.

It looks like Python 2.7 and conda-forge's flang aren't compatible. Is that right?

I don't know if that's a problem, but perhaps we should note it somewhere.

The error is:

conda.exceptions.UnsatisfiableError: The following specifications were found to be in conflict:
  - flang
  - python=2.7