Why isn't working properly???

Question

from tkinter import *
root = Tk()
input = Entry(root)
input.pack()
def state():
if len(input.get())==0:
return "disable"
def func():
l = Label(root,text="Hello "+input.get())
l.pack()
butt = Button(root,state=state(),command=func,text="click")
butt.pack()
root.mainloop()
Here's the task:
Write program to print the name along with "hello" if he Enter something in input box if he doesn't then click button should not be active

Answer 1

I don't think sololearner has all python library so some imports might not work. or it might just be u need to reach a higher level. I don't really know.