Connect clicked event of Button in PySide
import sys import os from PySide2.QtWidgets import QApplication, QWidget, QPushButton from PySide2.QtCore import QFile from PySide2.QtUiTools import QUiLoader class main(QWidget): def __init__(self): super(main, self).__init__() self.load_ui() def load_ui(self): loader = QUiLoader() path = os.path.join(os.path.dirname(__file__), "form.ui") ui_file = QFile(path) ui_file.open(QFile.ReadOnly) self.window:QWidget = loader.load(ui_file, self) ui_file.close() # pushButton is the name of button control self.pushButton:QPushButton = self.window.findChild(QPushButton,"pushButton") self.pushButton.clicked.connect(self.clicked) def clicked(self): print("Hello") if __name__ == "__main__": app = QApplication([]) widget = main() widget.show() sys.exit(app.exec_())
References
https://www.blog.pythonlibrary.org/2018/05/30/loading-ui-files-in-qt-for-python/