[Tkinter] getting Entry text

[Stauricus]

hello everybody. first post here

i'm having trouble to get the text value inside an Entry box. So, i created this small example that shows up the problem:

import tkinter as tk

root = tk.Tk()
label = tk.Label(root, text="Entry Box")
label.pack()
entry = tk.Entry(root)
entry.pack()
button = tk.Button(root, text="Print", command=print(entry.get()))
button.pack()

root.mainloop()

why doesn't it print the value entered by the user? do i have to update the entry box somehow?
thanks in advance :)