To get the maximum width of a QCalendarWidget or any other widget in PyQt5, you can use the maximumWidth() method. This method returns the maximum width for the widget.
Here's how to create a QCalendarWidget and get its maximum width:
import sys from PyQt5.QtWidgets import QApplication, QMainWindow, QCalendarWidget class MainWindow(QMainWindow): def __init__(self): super().__init__() self.calendar = QCalendarWidget(self) self.setCentralWidget(self.calendar) # Get the maximum width of the QCalendarWidget max_width = self.calendar.maximumWidth() print("Maximum Width:", max_width) app = QApplication(sys.argv) window = MainWindow() window.show() app.exec_() By default, the maximumWidth() method will return 16777215 (a very large value) which essentially means the widget doesn't have a practical maximum width set (it's set to the maximum possible value). If you want to restrict the widget to a certain maximum width, you can use the setMaximumWidth() method, and thereafter, maximumWidth() will return that set value.
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