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Fix ModuleNotFoundError: No module named 'cv2' in Python

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Introduction

The "ModuleNotFoundError: No module named 'cv2'" error is a common issue when working with the OpenCV library in Python. This error occurs when the Python interpreter is unable to find the required module, in this case, 'cv2'.

Solution

To resolve this error, you need to install the OpenCV library. There are two ways to do this: using pip or using conda.

Installing OpenCV using pip

  1. Open your terminal or command prompt.
  2. Type pip install opencv-python and hit Enter.
  3. Wait for the installation to complete.
pip install opencv-pytho

Installing OpenCV using conda

  1. Open your terminal or command prompt.
  2. Type conda install -c conda-forge opencv and hit Enter.
  3. Wait for the installation to complete.
conda install -c conda-forge opencv

Verifying the Installation

To verify the installation, try importing the 'cv2' module in Python:

import cv2
print(cv2.__version__)

If the installation was successful, you should not receive the "ModuleNotFoundError: No module named 'cv2'" error and the version of OpenCV installed on your system will be displayed.

Conclusion

By following these steps, you should be able to resolve the "ModuleNotFoundError: No module named 'cv2'" error and install the OpenCV library in Python.

See also: How to Resolve ModuleNotFoundError: No module named 'taming' in Python?

FAQs - ModuleNotFoundError: No module named 'cv2'

What is the difference between installing OpenCV using pip and conda?

The difference between installing OpenCV using pip and conda is the package manager being used. pip is a package manager for Python packages, whereas conda is a package manager for both Python and non-Python packages. If you have a conda environment set up, it is recommended to use conda for installing OpenCV.

Why do I get the "ModuleNotFoundError: No module named 'cv2'" error?

You receive the "ModuleNotFoundError: No module named 'cv2'" error because the Python interpreter is unable to find the required module, 'cv2', which is part of the OpenCV library. This error occurs because the OpenCV library is not installed on your system.

How do I know if I have the latest version of OpenCV installed?

To check the version of OpenCV installed on your system, you can run the following code in Python:
import cv2
print(cv2.version)