# QQuantity A widget that allows the user to edit a quantity (a magnitude associated with a unit). !!! note This widget requires [`pint`](https://pint.readthedocs.io): ``` pip install pint ``` or ``` pip install superqt[quantity] ``` ```python from qtpy.QtWidgets import QApplication from superqt import QQuantity app = QApplication([]) w = QQuantity("1m") w.show() app.exec() ``` {{ show_widget(150) }} {{ show_members('superqt.QQuantity') }}