NameError: Global Name 'text' Is Not Defined

I have a python code snippet that coverts the Mac address to another code using caesar ciphertext: The code is given below: import uuid def getmac(): mac_num = hex(uuid.getnode()

Solution 1:

First you need to name the tkinter Entry so you can reference to it later, then use the get method to get the Entry text.

Here is the modified code;

import uuid
from Tkinter import *

root = Tk()

root.title("Code Generator")
root.geometry("250x200+200+100")
root.resizable(width=False, height=False)
key = 1
cipher = ''

label_text = StringVar()
#label_text.set(cipher)


Label(root, text='Mac Address:').grid(row=0, sticky=W, padx=4)
entry = Entry(root)
entry.grid(row=0, column=1, sticky=E, pady=4)

Label(root, text="Code:").grid(row=1, sticky=W, padx=4)
hlbl = Label(root, textvariable=label_text,  width=20)
hlbl.grid(row=1, column=1, sticky=E, pady=4)


def get_it():
    global key, cipher
    alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
    text =  entry.get() # get contents of entry
    for c in text:
        if c in alphabet:
            cipher += alphabet[(alphabet.index(c) + key + 2) % (len(alphabet))]
    label_text.set(cipher)

Button(root, text="Submit", command=get_it).grid(row=2, column=1)
root.mainloop()