import tkinter as tk  
from tkinter import filedialog,messagebox

def save_file():
    file_path = filedialog.asksaveasfilename(defaultextension=".txt")
    if file_path:
        with open(file_path, "w") as file:
            file.write(text.get("1.0", tk.END))
root = tk.Tk()
root.title("Notepad")
text = tk.Text(root)
text.pack(expand=True, fill="both")
menubar = tk.Menu(root)
filemenu = tk.Menu(menubar, tearoff=0)
filemenu.add_command(label="Save", command=save_file)
filemenu.add_separator()
filemenu.add_command(label="Exit", command=root.quit)
menubar.add_cascade(label="File", menu=filemenu)
root.config(menu=menubar)
root.mainloop()