TKinter - Clear text widget

Question

I am inputting a random number from 1 to 25 into a text box on button press. Every time i press the button, i want the text box to be emptied before the new number is stored - but putting self.outputbox.delete("1.0") into the button command only deletes the first character. i tried replacing 1.0 by something obvious like 2.0, but it never deleted both characters. At the moment, i am doing a very dirty solution by just calling self.outputbox.delete("1.0") twice - but i want to know how to delete the entire content of the text box.

this is the part:

   def change_button_color(self):
       randomcolor = self.get_random_color()
       randombutton = self.random_button()
       for z in range(0,1):
          self.buttons['button{}'.format(randombutton)].config(bg=randomcolor)
          for i in range(0,40):
              self.outputbox.delete("1.0")
          self.outputbox.insert("1.0","Button" + str(randombutton) + " " + "has the color" + " " + randomcolor)

as you can see, i currently have a rather dirty solution to clear the box

AD WAN · Accepted Answer · 2018-05-29T10:13:26.443

1

Do this

self.outputbox.delete("1.0", self.END)

it will clear all the text widget

And if you imported tkinter as tk do this

self.outputbox.delete("1.0", self.tk.END)

edited May 29 '18 at 10:13

answered May 29 '18 at 10:02

AD WAN

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i tried that before, but the only thing that happened is "END" not defined error – Flying Thunder May 29 '18 at 10:04
what about `self.END` – AD WAN May 29 '18 at 10:09
that just changes it so saying that my class has no END attribute - do i have to declare END before in some way? – Flying Thunder May 29 '18 at 10:09
i did import it as tk and no, this one throws this: `AttributeError: '_tkinter.tkapp' object has no attribute 'END'` – Flying Thunder May 29 '18 at 10:15
post small portion of it or create minimal – AD WAN May 29 '18 at 10:19
1

It's either `END` or `tk.END`, depending on your import. Alternatively, you can use the string `'end'`, since that is what the constant `END` contains anyway. – fhdrsdg May 29 '18 at 10:28
i see clear the widget before you loop through the range `placing the delete attribute on top of range` like `delete("1.0", tk.END)` then `for i in range(0,40):` – AD WAN May 29 '18 at 10:30
yes, just putting "end" or just tk.END worked - thanks both! – Flying Thunder May 29 '18 at 10:46
1

`self.tk.END` is bad advice, unless you also show in your example that `self.tk.END` must be defined. It's not automatically set by tkinter. – Bryan Oakley May 29 '18 at 12:04

TKinter - Clear text widget

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