CODEWITHSUNDEEP
pythonnumpy
joasa
joasa

Reputation: 976

ImportError: undefined symbol: _PyUnicodeUCS4_IsWhitespace

I am a python beginner and I would like some help with this. I am using Ubuntu and I had installed python using Anaconda, but then I tried to install it again using pip and now when I'm trying to run my code, at import numpy as np, I see this error

ImportError: /home/dev/.local/lib/python2.7/site-packages/numpy/core/multiarray.so: undefined symbol: _PyUnicodeUCS4_IsWhitespace

How can I fix this?

Upvotes: 1

Views: 3833

Answers (2)

Albert
Albert

Reputation: 68180

I also got this error. If you google for it, you will find lot's of similar issues. The problem can happen when you have multiple Python versions. In my case, I had the Ubuntu 16.04 Python 2.7 via /usr/bin/python and another Python 2.7 via Linuxbrew. type python gave me /u/zeyer/.linuxbrew/bin/python2, i.e. the Linuxbrew one. type pip2.7 gave me /u/zeyer/.local/bin/pip2.7, and looking into that file, it had the shebang #!/usr/bin/python, i.e. it was using the Ubuntu Python.

So, there are various solutions. You could just edit the pip2.7 file and change the shebang to #!/usr/bin/env python2.7. Or reinstall pip in some way.

In my case, I found that the Python 2.7 via Linuxbrew was incompatible to a few packages I needed (e.g. Tensorflow), so I unlinked it and use only the Ubuntu 16.04 Python 2.7 now.

Upvotes: 1

Taufiq Rahman
Taufiq Rahman

Reputation: 5704

Just uninstall numpy:

pip uninstall numpy

And reinstall numpy:

pip install numpy

Another thing you can do is run it on a virtual environment:

virtualenv myproject
cd myproject
source bin/activate
pip install numpy

Upvotes: 0

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