Python Tkinter Enter Button

Question

I am trying to store the values of a Tkinter text box widget as a string to use in the rest of my code. But every time I have an enter function I am getting errors regarding the defying of the command is not possible in the functionCall.

class text():
    master = Tk()
    def on_button():
        print()
        t = Label(master, text="Enter Text ")
        e1 = Text(master, width=50, height = 25)
        e1.grid(row=0, column =1, rowspan=3, columnspan=4, padx=4, pady=4)
        functionCall = Button(master, text='Enter', command=Return)
        functionCall.grid(row=4, column=4)
    var = StringVar()
    def Return(self):
        self.TempVar=self.Entry.get()
        print(self.TempVar)

I am trying to connect the string inserted with the rest of my code. The concept works with a one-line entry box, but the idea is to have a bigger text box.

what are the errors that you are getting? The error likely tells you exactly what the problem is. — Bryan Oakley
– Bryan Oakley, Commented Mar 27, 2016 at 18:15
You are creating a root window inside the text(0 function -- is this the only place you're creating a root window? There seems to be a lot of code missing, since you don't show how the on_button function is being called. — Bryan Oakley
– Bryan Oakley, Commented Mar 27, 2016 at 18:16
This is the function to make a pop up window for the user to insert text. The rest of the code correlates based off of what is typed in the window by putting every key to a color window to show in a window. But the idea is to have the code go through the while loop: while index < len(name): letter = name[index] num = ord(letter) stack.append(num) index += 1 @BryanOakley The error is object of type 'NoneType has no len() — Alyssia
– Alyssia, Commented Mar 27, 2016 at 19:49
You need to use a Toplevel, not another instance of Tk. That may not be your only problem, but it's definitely a problem. — Bryan Oakley
– Bryan Oakley, Commented Mar 27, 2016 at 20:11

Fatih1923 · Accepted Answer · 2016-03-27 15:32:47Z

1

You should try something like that. You would use .get option for Text widget.

from tkinter import*
master = Tk()
def on_button():
   print()

def Return():
   TempVar=e1.get("1.0",END)
   print(TempVar)

t = Label(master, text="Enter Text ")
t.grid(row=0, column =1, rowspan=3, columnspan=4, padx=4, pady=4)
e1 = Text(master, width=50, height = 25)
e1.grid(row=1, column =1, rowspan=3, columnspan=4, padx=4, pady=4)
functionCall = Button(master, text='Enter', command=Return)
functionCall.grid(row=4, column=4)

answered Mar 27, 2016 at 15:32

Fatih1923

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3 Comments

Alyssia Over a year ago

In terms of a length value within the string, would that be able to be recognized?

Bryan Oakley Over a year ago

You wrote "You should try something like that." -- like what? What does "that" refer to in that sentence?

Bryan Oakley Over a year ago

Oh, oh. So, more like "you should try something like the following code..."?

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