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Code: Alles auswählen

import tkinter

def check():
    intake=ent1.get()
    intake2=ent2.get()
    result=intake1+intake2
    lb1["text"] = result
    new.destroy()

def second():
    ###
    global new
    new=tkinter.Toplevel(main)
    ###
    new.title("2nd window")
    #Label/Entry/Butt0n#
    lb2=tkinter.Label(new, text="Write Numbers")
    ent1=tkinter.Entry(new)
    ent2=tkinter.Entry(new)
    but2=tkinter.Button(new, text="check", command=check)
    #pack
    lb2.pack()
    ent1.pack()
    ent2.pack()
    but2.pack()
    #.get method
    name=ent1.get()
    #Loop#
    new.mainloop()
    


main=tkinter.Tk()
main.geometry("300x300")
main.title("1st")

#Label/Button#
lb1=tkinter.Label(main, text="Welcome")
but1=tkinter.Button(main, text="okey", command=second)
#pack
lb1.pack()
but1.pack()

#Loop#
main.mainloop()

Code: Alles auswählen

"Exception in Tkinter callback
Traceback (most recent call last):
  File "C:\lib\tkinter\__init__.py", line 1533, in __call__
    return self.func(*args)
  File "C:\Users\Davide\Desktop\beispiel.py", line 4, in check
    intake=ent1.get()
NameError: name 'ent1' is not defined"