main.py

import tkinter as tk
from tkinter import filedialog

def open_file():
    file_path = filedialog.askopenfilename(filetypes=[("Text files", "*.txt")])
    if file_path:
        with open(file_path, 'r') as file:
            text.delete("1.0", tk.END)
            text.insert(tk.END, file.read())
            

def save_file():
    file_path = filedialog.asksaveasfilename(filetypes=[("Text files", "*.txt")])
    if file_path:
        with open(file_path, 'w') as file:
            file.write(text.get("1.0", tk.END))

root = tk.Tk()
root.title("Text Editor")
root.geometry("800x600")

menu = tk.Menu(root)
root.config(menu=menu)

file_menu = tk.Menu(menu)
menu.add_cascade(label="File", menu=file_menu)
file_menu.add_command(label="Open", command=open_file)
file_menu.add_command(label="Save", command=save_file)
file_menu.add_separator()
file_menu.add_command(label="Exit", command=root.quit)

text = tk.Text(root, wrap=tk.WORD)
text.pack(expand=tk.YES, fill=tk.BOTH)

root.mainloop()