ModuleNotFoundError: No module named 'cv2' in Python

In this post, We will see how to resolve ModuleNotFoundError No module named 'cv2' in Python.

Table of Contents

Reason for No module named ‘cv2’

Let’s first reproduce this error, and then we will see how to resolve ModuleNotFoundError No module named 'cv2'.

We will run cv2 imread example over here.

# import computer vision library(cv2) in this code

import cv2

# main code

if __name__ == "__main__" :

# mentioning absolute path of the image

img_path = "C:\\Users\\user\\Desktop\\flower.jpg"

# using imread() method of cv2

image = cv2.imread(img_path)

# show the image on the newly created image window

cv2.imshow('image window',image)

When you run above program, you might get below output:

---------------------------------------------------------------------------

ModuleNotFoundError Traceback (most recent call last)

<ipython-input-1-aa8cedc4ccbe> in <module>

1 # import computer vision library(cv2) in this code

----> 2 import cv2

4 # main code

5 if __name__ == "__main__" :

ModuleNotFoundError: No module named 'cv2'

You will get this error when cv2 module is not properly installed on your machine.

Let’s see how we can solve this error.

If you are windows user, then follow the below steps:

In case you are using Anaconda, then follow below steps.

Open command prompt
Update conda navigator with following command:
$ conda update anaconda-navigator
$ conda update navigator-updater
Install opencv using following command:
$ conda install -c conda-forge opencv

or

$ conda install -c https://conda.binstar.org/menpo opencv

If you are linux user, then follow the below steps:

$ sudo apt install python-opencv

It might be possible that PYTHONPATH does not have site-packages.

Open ~/.bashrc
Add following line:

$ export PYTHONPATH=/usr/local/lib/python2.7/site-packages:$PYTHONPATH

That’s all about ModuleNotFoundError: No module named ‘cv2’ in Python.

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