(pytorch) pytorch install error

Error Message

RuntimeError: module compiled against API version 0xb but this version of numpy is 0xa

Traceback (most recent call last):

  File "<stdin>", line 1, in <module>

  File "/usr/local/lib/python2.7/dist-packages/torch/__init__.py", line 53, in <module>

    from torch._C import *

ImportError: numpy.core.multiarray failed to import

Solution

install new version of numpy

sudo -H pip install --upgrade numpy --trusted-host pypi.python.org