title: PySide6 Qt Fonts 001
tags: python qt
h1:

Docs: [QFont](https://doc.qt.io/qtforpython-6/PySide6/QtGui/QFont.html#PySide6.QtGui.QFont) [QFontMetrics](https://doc.qt.io/qtforpython-6/PySide6/QtGui/QFontMetrics.html)

```py
big_font = QFont("Optima",24)
big_font.setBold(True)
font = QFont("Optima",12)
big_font_m = QFontMetricsF(big_font)   # QFontMetrics rounds everything to integers
font_m = QFontMetricsF(font)

x = font_m.lineSpacing()
y = font_m.horizontalAdvance("hello")
```