ModuleNotFoundError: No module named 'matplotlib code example

Example 1: ModuleNotFoundError: No module named 'matplotlib'

pip install matplotlib

Example 2: no module named pyplot

# Run CMD, enter: 
pip3 install matplotlib

# Open PyCharm and run an empty file with:
import pip
pip.main(["install","matplotlib"])

Example 3: No module named 'matplotlib'

pip install matplotlib