ModuleNotFoundError: No module named 'tkinter'

## Error Desciption ModuleNotFoundError: No module named 'tkinter' ```sh File "/usr/local/lib/python3.6/dist-packages/matplotlib/backends/backend_tkagg.py", line 1, in from . import _backend_tk File "/usr/local/lib/python3.6/dist-packages/matplotlib/backends/_backend_tk.py", line 6, in import tkinter as tk ModuleNotFoundError: No module named 'tkinter' ``` ## Solution ```sh sudo apt install python3-tk ```