Opencv is a library that is very helpful in image pre or post-processing. If you are a python programmer and you are unable to install OpenCV, then this post is for you. importerror no module named cv2 error occurs when cv2 module is not properly installed or its path is not properly set or configured. The straight-way fix for this error (no module named cv2) is to reinstall this module (OpenCV-python).
In some scenario reinstalling this module automatically remove the older version. But in some scenarios, We need to manually delete the older or incompatible version of cv2 module (OpenCV-python). In this article, We will encounter these ways one by one.
Quick Solutions for Importerror No Module Named cv2
If you want quick solutions for this Importerror then below are the ones.
Solution 1:
pip install opencv-python
pip3 install opencv-python
python -m pip install --upgrade pip
Solution 2:
conda install opencv
Importerror no module named cv2 –
There are so many ways to install this packager. Let’s see them one by one.
Method 1: Using pip package Manager-
1.1 Use the below command to fix this issue.
pip install opencv-python
1.2 In the case of the Python 3. x version, You may use the below command.
pip3 install opencv-pythonIf the above command is not working. There may be a strong possibility that the pip package manager is not updated. So install it.
python -m pip install --upgrade pipMethod 2: Using conda package Manager-
In the above section, we have used the pip package manager. The conda manager is the same as pip. So we can also use conda to install the OpenCV or cv2 module. Here is the way to do so.
conda install opencv 
How to install OpenCV on Linux?
Most of the developers are unable to install OpenCV on the Linux operating system. The below command will allow you to install opencv on your Linux system. But make sure Python must be installed in your system.
For python 3.x
pip3 install opencv-pythonFor python 2.x
pip install opencv-pythonNote –
Well, At the beginning of the article, I mentioned that reinstalling any module will first uninstall the older version. But you manually do it with the below command also.
pip uninstall opencv-pythonIt will manually uninstall the module.
Conclusion –
“importerror no module named cv2” is a very common error. Also, the import errors whether for cv2 or any other module have the same solution. Sometimes you get this error when you wrongly type the import statement. For example, instead of writing import cv2 , you write import cv. This leads to an import error when you run the code. I hope once you read this article, You can easily fix this error. Still, If you think, You are stuck. Please contact us or comment below in the comment box. We will surely assist with this. We have this very informative article on Generic ways to fix importerrors –
Easiest way to Fix importerror in python ( All in One )
It will clear the complete concept of solving Importerror in-depth like an expert. So Please go throw it.
No Module Named cv2 ( Other Specifications ) –
We have already provided the generic solution for the No Module Named cv2 error. Since this error can be produced in a different environment like Linux, Mac, Windows, etc. On the other hand, the same error No Module Named cv2 can be produced in any of the IDE like Jupyter, Pycharm, Spyder, or with any package bundle like Anaconda. But the solution in most cases will be common irrespective of OS, Platform, IDE, etc.
Similar Errors :
1. Importerror attempted relative import with no known parent package
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3. ImportError: numpy.core.multiarray failed to import [cv2, matplotlib, PyTorch, pyinstaller ]
4.importerror: cannot import name registermattype from cv2.cv2 (Fix It)
Thanks
Data Science Learner Team
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