Qt for Python (PySide/Shiboken)

from PySide6 import QtCore, QtWidgets from PySide6.QtUiTools import QUiLoader from PySide6.QtDesigner import QPyDesignerCustomWidgetCollection loader = QUiLoader() class UserInterface(QtCore.QObject): # An object wrapping around our UI def __int__(self, parent=None): super().__init__(parent) self.ui = loader.load("widget.ui", None) self.ui.setWindowTitle("User Data") self.ui.submit_button.clicked.connect(self.do_something) QPyDesignerCustomWidgetCollection.registerCustomWidget(self.ui, module="user interface") def show(self): self.ui.show() def do_something(self): print(f"{self.ui.full_name_line_edit.text()} is a {self.ui.occupation_line_edit.text()}")