python - PysimpleGUI 中的更新标签未发生

Question

我正在尝试更新 PySimpleGUI 中的标签，但它没有更新

请告知我做错了什么

我在 Windows 10 电脑上

    while True:
    event, values = Sample__Window__Layout.read()
    if event in('Exit', None):
        break
    if event == '-File-':
        Excel__Ki__Gatha = Pawan__Simple__GUI.popup_get_file("Take us to the Selected Excel File", title = "Take us to the Selected Excel File", multiple_files = False, file_types = (('Excel Files', '*.xlsx'),), no_window = False, show_hidden = True)
        Gyan__Ganga = values['-Columns-']
        if Excel__Ki__Gatha != "":
            if Gyan__Ganga == "": Gyan__Ganga ='A'
            sleep(1)
            Sample__Window__Layout['-Banana-'].update("Processing Please Wait")
            sleep(1)
            Read__From__Provided__Excel(Excel__Ki__Gatha,Gyan__Ganga)
            break

标签： pythonlabelpysimplegui