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I have a peculiar problem with the python module scipy.io. I am using Python 3.4 in a virtual emvironment. While I can import scipy within python, I get an error message importing scipy.io: "ImportError: /home/dv8000/virtualenv/venv-py3.4/lib/python3.4/lib-dynload/_ctypes.cpython-34m-i386-linux-gnu.so: undefined symbol: _PyTraceback_Add"

I can import scipy.io from python 2.7, not in the virtual environment, and I can import scipy.io within anaconda3, which has python 3.4. I've uninstalled scipy and reinstalled it a few times with variations, but without being able to recover scypy.io. I am developing a django appication, and I'm sure I could import scipy.io in the past. Any suggestions or ideas would be appreciated.

Thanks, Walter

user3532823
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  • This is probably due to an update in the underlying python that you are using in the virtualenv. – donkopotamus Oct 05 '15 at 21:24
  • Thanks, donkopotamus, I did copy python3.4 from outside my virtualenv, and created the proper python link, python3.4 -> python. I can now import scipy.io. This was a weird problem - thanks for the answer! – user3532823 Oct 05 '15 at 23:18

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