Python3 tkinter base LabelFrame StringVar Click the button to change the text displayed in Label

• Python: 3.8.11
• OS: Ubuntu Kylin 20.04
• Conda: 4.10.1
• PyCharm: 2021.1.3 (Community Edition)

 

code

@author: Date: 8/6/21 ""
from tkinter import *


def main() :
    # This function is going to come first
    # If you write after all the code, you will not find it
    def _change_content() :
        var.set('sweet potato')

    root = Tk()

    # Two frames
    frame1 = Frame(root)
    frame2 = Frame(root)

    Only variables of this type are accepted if the text displayed by # Label changes
    var = StringVar()
    var.set("Seaweed")

    text_label = Label(frame1,
                       textvariable=var,
                       justify=LEFT
                       )
    text_label.pack()

    the_button = Button(frame2,
                        text='Next sentence',
                        command=_change_content  The function that is called when clicked
                        )
    the_button.pack()

    You can switch these two places, 2 first, 1 last.
    frame1.pack(padx=20, pady=20)
    frame2.pack(padx=40, pady=40)

    mainloop()


if __name__ == '__main__':
    main()

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The results

 

The resources

• Tkinter document

 

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