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Title: Troubleshooting: ImportError when Importing cv2 despite Installing OpenCV-Python
OpenCV is a popular computer vision library used for various image processing tasks. OpenCV-Python is the Python wrapper for OpenCV. However, sometimes users encounter an ImportError when trying to import the cv2 module despite having installed OpenCV-Python. This tutorial will guide you through troubleshooting steps to resolve this issue.
Before troubleshooting, verify that OpenCV-Python is installed correctly on your system. Open a terminal or command prompt and execute the following command:
This command should display information about the installed OpenCV-Python package, including the version and installation location. If it shows information, the package is installed.
Ensure that you are using the same Python interpreter where OpenCV-Python is installed. Sometimes, multiple Python versions are installed, and the package might be installed in a different environment.
To check the currently active Python environment, run:
Ensure it matches the Python environment where OpenCV-Python was installed.
If OpenCV-Python is installed but not importable, it might be due to the cv2 module's location. Sometimes, the cv2 module is not placed in a location that Python recognizes by default.
You can check the cv2 module's location by:
If this prints a path ending with cv2.so or cv2.pyd, it confirms the location of the cv2 module.
In some cases, the path where OpenCV-Python is installed might not be included in Python's system path. You can add it manually before importing cv2:
Replace '/path/to/opencv-python' with the actual path where OpenCV-Python is installed.