Module's function auto running? : <p>I can't figure out why the function that I've called auto runs when I run the script, without pressing the button.</p>

<pre><code>import tkinter
from tkinter import filedialog


root = tkinter.Tk ()
root.title("fool")
root.geometry("300x300")
br = tkinter.Button(root, text ="Carica File", command = filedialog.askopenfile(mode="r"))
br.pack()
</code></pre>
