product · inferred from evidence
python3-tk
A system package that provides tkinter bindings for Python on Debian/Ubuntu.
- ModuleNotFoundError: No module named 'tkinter'
Third-person routing text. Fixes matplotlib failing with No module named tkinter: the default TkAgg backend needs the tkinter GUI toolkit, which many Python builds omit. Install the python3-tk system package or switch matplotlib to the non-