我正在為我的朋友開發一個小項目，它是使用 python tkinter 進行的。代碼是def run():    filename = filename_ent.get()    if filename == '':        # to show an error that boxes are empty        messagebox.showerror(            'File exists', 'File already exists, try some other name thas is not used before')    if os.path.exists(f'{filename}.txt'):        # to show an error if the file already exists        messagebox.showerror(            'File exists', 'File already exists, try some other name not used before')    else:        # to open the file for python        new = open(f'{filename}.txt', '+w', encoding='utf-8')        # to write the name and email inside the file        new.write(f'''Day of the week: {clicked}''')        eventl.config(text=f'Done :)!')  # to change the label to the name        os.startfile(f'{filename}.txt')  # to open the file in a new windoweventl = Label(root, text='What is the name of the event',font=('helvatica',14))eventl.place(x=0,y=0)lfilename = Label(root,text="What do you want to call the file?", font = ("helvatica, 14"))lfilename.pack()filename_ent = Entry(root)filename_ent.pack(pady=10,padx=30)clicked = StringVar()drop = OptionMenu(root, clicked, "Monday", "Tuesday")        drop.pack(pady=10,padx=10)b = Button(root, text='Done', command=run)b.pack(pady=(10, 0))root.mainloop()注意：我使用 utf-8 因為我也使用阿拉伯輸入，但這似乎不是問題，因為我嘗試刪除它（這不是完整的代碼）。