from tkinter import *
root = Tk()
root.title("щось")
root.geometry("750x600")
root['bg'] = '#DDA0DD'
message = StringVar()
message_entry = Entry(textvariable=message)
message_entry.place(x=163, y=12, anchor="c")
def spysok():
prods_listbox = Listbox()
for prod in message_entry.get():
prods_listbox.insert(END, prod)
prods_listbox.pack()