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Newtron Malayalam
Asked: 2019-07-13 06:27:32 +0800 CST

Python3:ImportError: /usr/lib/python3.7/cv2/cv2.so: undefined symbol: PyInt_Type

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I have installed opencv2 with 'pip3 install opencv' command. After that, I've opened the python3 terminal from 'python3' command. Then typed import cv2 to test installation. Command-line gave me an error.

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python3.7/cv2/__init__.py", line 3, in <module>
from .cv2 import *
ImportError: /usr/lib/python3.7/cv2/cv2.so: undefined symbol: PyInt_Type

Can I fix this. Anyone can help me?

python3 opencv

1 Answers

  1. Unless you specifically need to have it installed through pip3, you can uninstall the opencv module you installed, then reinstall it through the Ubuntu package python3-opencv.

    To reverse the effect of pip3 install opencv:

    pip3 uninstall opencv

    Or if you had actually run pip3 install opencv as root (perhaps with sudo), then run:

    sudo pip3 uninstall opencv

    Then, to install the opencv module for Python 3 using Ubuntu's package manager:

    sudo apt update
sudo apt install python3-opencv
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