JamieS JamieS - 1 month ago 23
Python Question

Python OpenCV import error with python 3.5

I am having some difficulties installing opencv with python 3.5.

I have linked the cv files, but upon

import cv2
I get an error saying
ImportError: dlopen(/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/cv2.so, 2): Symbol not found: _PyCObject_Type
or more specifically:


/Library/Frameworks/Python.framework/Versions/3.5/bin/python3.5 /Users/Jamie/Desktop/tester/test.py
Traceback (most recent call last):
File "/Users/Jamie/Desktop/tester/test.py", line 2, in
import cv
File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/cv.py", line 1, in
from cv2.cv import *
ImportError:dlopen(/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/cv2.so, 2): Symbol not found: _PyCObject_Type
Referenced from: /Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/cv2.so
Expected in: flat namespace
in /Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/cv2.so


I have linked cv.py and cv2.so from location
/usr/local/Cellar/opencv/2.4.12_2/lib/python2.7/site-packages
correctly into
/Library/Frameworks/Python.framework/Versions/3.5/bin


Would anybody be able to help please?

Thanks very much

Answer

Found an answer - follow the instructions on this website BUT you have to change to the version of python you are using.

Also, I didn't bother with the virtual environments.

And lastly cv2.so is actually called cv2.cpython-35m-darwin.so in the build/lib folder that you make.

Then it works.

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