Tkinter is a standard GUI library for Python, and it is the most popular Python GUI framework. It is fast, easy-to-use, and provides a wide range of widgets, including buttons, labels, and text boxes.

Granted, many of these toolkits have Python bindings — PyQt, PySide, and wxPython come to mind. However, the defacto GUI framework for Python is Tkinter, a wrapper around Tk that is relatively ...