from PySide.QtGui import QDialog, QDialogButtonBox, QVBoxLayout, QApplication app = QApplication([]) dialog = QDialog() button_box = QDialogButtonBox(QDialogButtonBox.Ok | QDialogButtonBox.Cancel) button_box.accepted.connect(dialog.accept) button_box.rejected.connect(dialog.reject) layout = QVBoxLayout(dialog) layout.addWidget(button_box) dialog.setWindowTitle("Dialog Box Example") dialog.exec_()In this example, we create a dialog window using the `QDialog` widget. We then create a `QDialogButtonBox` object containing the "Ok" and "Cancel" buttons. We connect the `accepted` and `rejected` signals of the button box to the `accept` and `reject` slots of the dialog, respectively. Finally, we add the button box to the dialog's layout and display the dialog using the `exec_()` method. Overall, PySide is a package library that provides a Python binding for the Qt framework, allowing developers to create cross-platform GUI applications using Python.