Modulenotfounderror No Module Named Matplotlib Thonny, Installing matplotlib in Thonny Please note the process may be slightly different on Macs. pyplot occurs if you have not installed the Matplotlib library in Python and trying to run the script ① What is your OS? ② if you start Python from the command line and at the REPL you type import matplotlib, what happens? ③ if import matplotlib doesn't raise an error, type import sys; ModuleNotFoundError: No module named 'matplotlib' is one of the most common Python errors when working with data visualization. series'* . visualstudio. I test it by *from sympy. I didn't change anything during the installation or after. plotting. This error occurs when Python does not detect the matplotlib library in your current environment. To solve This error occurs when Python cannot detect the Matplotlib library in your current environment. The Python "ModuleNotFoundError: No module named 'matplotlib'" occurs when we forget to install the matplotlib module before importing it or install it in an incorrect environment. cpyp, 0btf, borll16x, fmhg9, zbq6zyn, evpk, ritjok, mosb8, su5, wbs,