Robert McLeod added the comment:
After building with Python3.7 I was able to get a useful error message that
`PyMem` functions were being called inside GIL release. I will replace these
with C-equivalents and try with Python 3.6.
Fatal Python error: Python memory allocator called without
New submission from Robert McLeod:
I'm working on the development branch of the `numexpr` module and I've run into
some problems on Python 3.6, where I seem to get a variety of errors relating
to threading or reference counting errors. This module is commonly used for
accelerating NumPy code
