python tkinter SyntaxError

Question

Why I can't make nonlocal variable in Class.

here is code --->

    from tkinter import *
     class Note:
         root = Tk()
         nonlocal font_size = 16
         def bigger(event):
             font_size+=5
         root.bind("<Shift-Up>", bigger)
         root.mainloop()

output --->

           nonlocal font_size = 16
                       ^
           SyntaxError: invalid syntax

ForceBru · Accepted Answer · 2019-07-02 12:52:13Z

3

Yes, nonlocal variable = value is not valid syntax. nonlocal, just like global, is used to "mark" names as nonlocal and global, respectively. It's not a special form of variable definition. You can "mark" a name as nonlocal like this:

nonlocal variable

And then use variable somewhere in your code.

answered Jul 2, 2019 at 12:52

ForceBru

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Comments

user11669334 · Accepted Answer · 2019-12-05 19:04:53Z

0

Now I know the answer you must to use init(self)

answered Dec 5, 2019 at 19:04

user11669334

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