Exclude pip tests on OSX (#351)
Exclude pip tests on OSX (#351)

Homebrew is now installing python 3.7 but there aren't wheels for the dependencies we want yet, and our CI machine doesn't have the myriad Fortran libraries needed to build them all.
For now just disable it since I can't find a way of getting Homebrew to install a specific version.
thought-machine/please,thought-machine/please,thought-machine/please,thought-machine/please,thought-machine/please,thought-machine/please