How to get the text in entry widget by Enter key

entry_return-key.py

import ctypes
import tkinter


def input(event):
    l["text"] = e1.get()        #set label text
    e1.delete(0, tkinter.END)   #delete entry


if __name__ == "__main__":
    ctypes.windll.shcore.SetProcessDpiAwareness(1)
    root = tkinter.Tk()

    #Label
    l = tkinter.Label(root, width=15, bg="lightblue")
    l.pack(pady=3)

    #Entry
    e1 = tkinter.Entry(root, bd=5)
    e1.bind("<Return>", input)      #bind Retun key
    e1.pack(padx=3)
    
    root.mainloop()