Tkinter not recognizing any type of function

import tkinter
import customtkinter

tk = tkinter.Tk(className='Tkinter - TutorialKart', )
tk.geometry("500x300")

def submitFunction() :
  q1 = tk.Label(text="Hello, Tkinter")
  q1.pack


button_submit = tkinter.Button(tk, text ="Submit", command=submitFunction)
button_submit.config(width=20, height=2)

button_submit.pack()
tk.mainloop()

As you can see by running the code and editing the variable q1 to any other function it will not work, I get this error:

AttributeError: '_tkinter.tkapp' object has no attribute 'Label'
Exception in Tkinter callback
Traceback (most recent call last):
  File "C:\Users\USER\AppData\Local\Programs\Python\Python310\lib\tkinter\__init__.py", line 1921, in __call__    
    return self.func(*args)
  File "c:\Users\USER\OneDrive - Bristol Virginia Public Schools\Desktop\Current projects\main.py", line 8, in submitFunction
    q1 = tk.Label(text="Hello, Tkinter")
  File "C:\Users\tpitcock\AppData\Local\Programs\Python\Python310\lib\tkinter\__init__.py", line 2383, in __getattr__ 
    return getattr(self.tk, attr)
AttributeError: '_tkinter.tkapp' object has no attribute 'Label'

I tried changing text to different things but it didn't work.

I'm using Python 3.

The error is telling you what is wrong. It says that tk doesn't have an attribute named Label, which is true. In your code, tk isn't the tkinter module, it's the instance of Tk that you created with this line:

tk = tkinter.Tk(className='Tkinter - TutorialKart', )

If you want to use the tkinter Label class, it needs to come from the tkinter module just like you do with tkinter.Tk and tkinter.Button:

q1 = tkinter.Label(text="Hello, Tkinter")
#    ^^^^^^^

what is your goal? Do you just want to make a window? If yes, first you need to import all of the classes in tkinter with from tkinter import *. And after that you can make an object from Tk class: Favorite name = Tk(). Then you can access all functions and classes in tkinter using this object. The code below is a simple design of a window:

from tkinter import *
window = Tk()
window.title("your favorite")
window.geometry("700x700")
.
.
.
window.mainloop()