[timClicks]

I would always be worried with installing numpy/scipy via pip that I wouldn't be linking to BLAS/LAPACK correctly.

[rhodysurf]

What do you mean? I have always installed via pip with zero errors on all three platforms.

[moyix]

The worry is not that it will throw an error, it's that it will silently link against lower-performance math libraries and make your code inexplicably slow.