Fix 'No module named 'matplotlib'' Error in Python

The error message 'No module named 'matplotlib'' indicates that the matplotlib module is not installed in your Python environment.

To resolve this issue, you can install matplotlib using pip, which is a package manager for Python. Open your command prompt or terminal and run the following command:

pip install matplotlib

This will download and install the matplotlib module. Once the installation is complete, you should be able to import and use matplotlib in your Python scripts without any error.