See: https://github.com/numpy/numpy/issues/12654
Import of numpy
on travis CI fails for numpy-1.16.0rc1-py2.7-linux-x86_64.egg
import numpy
File "/home/travis/virtualenv/pypy2.7-5.8.0/site-packages/numpy-1.16.0rc1-py2.7-linux-x86_64.egg/numpy/__init__.py", line 142, in <module>
from . import core
File "/home/travis/virtualenv/pypy2.7-5.8.0/site-packages/numpy-1.16.0rc1-py2.7-linux-x86_64.egg/numpy/core/__init__.py", line 16, in <module>
from . import multiarray
File "/home/travis/virtualenv/pypy2.7-5.8.0/site-packages/numpy-1.16.0rc1-py2.7-linux-x86_64.egg/numpy/core/multiarray.py", line 44, in <module>
arange.__module__ = 'numpy'
TypeError: readonly attribute
For example see: https://travis-ci.org/uqfoundation/mystic/jobs/474109434