Numpy import throws AttributeError: 'module' object has no attribute 'core'

Question

import numpy as np
  File "/home/anirrudh/.virtualenvs/ml4t2/local/lib/python2.7/site-packages/numpy/__init__.py", line 180, in <module>
    from . import add_newdocs
  File "/home/anirrudh/.virtualenvs/ml4t2/local/lib/python2.7/site-packages/numpy/add_newdocs.py", line 13, in <module>
    from numpy.lib import add_newdoc
  File "/home/anirrudh/.virtualenvs/ml4t2/local/lib/python2.7/site-packages/numpy/lib/__init__.py", line 8, in <module>
    from .type_check import *
  File "/home/anirrudh/.virtualenvs/ml4t2/local/lib/python2.7/site-packages/numpy/lib/type_check.py", line 11, in <module>
    import numpy.core.numeric as _nx
  File "/home/anirrudh/.virtualenvs/ml4t2/local/lib/python2.7/site-packages/numpy/core/__init__.py", line 57, in <module>
    from numpy.testing import Tester
  File "/home/anirrudh/.virtualenvs/ml4t2/local/lib/python2.7/site-packages/numpy/testing/__init__.py", line 14, in <module>
    from .utils import *
  File "/home/anirrudh/.virtualenvs/ml4t2/local/lib/python2.7/site-packages/numpy/testing/utils.py", line 15, in <module>
    from tempfile import mkdtemp
  File "/usr/lib/python2.7/tempfile.py", line 35, in <module>
    from random import Random as _Random
  File "/home/anirrudh/OMSCS/Courses/ML4T/ml4t/mc3_p2/random.py", line 5, in <module>
    import matplotlib.pyplot as plt
  File "/home/anirrudh/.virtualenvs/ml4t2/local/lib/python2.7/site-packages/matplotlib/__init__.py", line 122, in <module>
    from matplotlib.cbook import is_string_like, mplDeprecation, dedent, get_label
  File "/home/anirrudh/.virtualenvs/ml4t2/local/lib/python2.7/site-packages/matplotlib/cbook.py", line 33, in <module>
    import numpy.ma as ma
  File "/home/anirrudh/.virtualenvs/ml4t2/local/lib/python2.7/site-packages/numpy/ma/__init__.py", line 44, in <module>
    from . import core
  File "/home/anirrudh/.virtualenvs/ml4t2/local/lib/python2.7/site-packages/numpy/ma/core.py", line 30, in <module>
    import numpy.core.umath as umath
AttributeError: 'module' object has no attribute 'core'

I am working on Ubuntu 14.04. I tried reinstalling numpy, created a new virtualenv, but it isn't helping. I get the same error outside the virtualenv as well. It stopped working suddenly. It was fine until a little while ago.

Answer 1

(Answer posted on behalf of the OP).

Update: Resolved.

I had created a python file for one of my projects name random.py and when numpy is imported, it was calling this file instead of it's own library file hence resulting in the error. I had to delete/rename random.py which I created and that fixed the issue.

Answer 2

Try running it in Python 2 instead of Python 3 - you may have the older version of Spark

Answer 3

This happened to me in Windows with Anaconda. I fixed it by removing the python3 path from the environment variable PATH.