wstat.py: invalid literal for int() with base 10: '0rc1'

The ValueError rises in:

einsum_bug = tuple(map(int, np.__version__.split("."))) < (1, 7, 0)

As a quick hack one could replace the line simply with

einsum_bug = False

The actual numpy version is 1.15.0. So version 1.7.0 seems rather old and this check might be removed completely.

The problem was that the version number can look like 1.19.0rc1 and the last field can not be converted to int.

The fix just ingores the last field

Line 7 in 2dedfca

einsum_bug = tuple(map(int, np.__version__.split(".")[:2])) < (1, 7)