How to get the text in entry widget

entry_1.py

import ctypes
import tkinter


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


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

    #Entry
    e1 = tkinter.Entry(root, bd=5)
    e1.pack(padx=3, pady=3)

    #Button
    b = tkinter.Button(
        root,
        width = 15,
        bg = "lightblue",
        text = "get entry",
        command = get_entry_text
    )
    b.pack(pady=3)
    
    root.mainloop()