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’
Resolution for No module named ‘cv2’

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)

# 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
      3 
      4 # main code
      5 if __name__ == "__main__" :

ModuleNotFoundError: No module named 'cv2'

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

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.

Resolution for No module named ‘cv2’

Let’s see how we can solve this error.

Windows user

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

Open command prompt
Run following command:
$ python -m pip install –upgrade pip
Install opencv using following command:
$ pip install opencv-python

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

Linux user

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

Open terminal
Run following command:
$ sudo pip3 install opencv-python

$ sudo apt install python-opencv

Add site-packages to PYTHONPATH

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.

Was this post helpful?

Let us know if this post was helpful. Feedbacks are monitored on daily basis. Please do provide feedback as that\'s the only way to improve.

ModuleNotFoundError: No module named ‘cv2’ in Python

Reason for No module named ‘cv2’