Problem with matplotlib.pyplot in vscodes

Question

I have been working on a project regarding linear discriminant analysis and have been working with Python on VS Code to do so. However, I have a line that keeps popping up every time I debug the file:

cannot assign to literal (matplotlib.py, line 44).

It refers to a line I have which is:

import matplotlib.pyplot as plt

I was using a conda environment but I uninstalled it since it kept saying the same thing, along with not recognizing NumPy and I have been trying with only pip but it still does not work. I have installed python 3.10.4.