
# FontLab 7 PythonQt API

Version: 2020-08-09

FontLab uses Qt, a cross-platform set of APIs for user interface development and interaction with the operating system. Qt provides a unified API whether you use macOS or Windows. The `PythonQt` package exposes the entire Qt API to Python.

- [`PythonQt`](PythonQt.md): FontLab’s API docs for the `PythonQt` package
- [official PythonQt](https://mevislab.github.io/pythonqt/): the official documentation of PythonQt
- [PySide2 by Qt](https://doc.qt.io/qtforpython/index.html): documentation of `PySide2`, which is an alternative Qt-Python bridge. The documentation is useful in exploring what you can do with Qt. Some details differ between PySide2 and PythonQt, so always check PythonQt documentation.
