在Python中将数据保存到JSON文件时出错

Question

我正试图将数据保存到JSON文件中，但我不断遇到以下错误，似乎无法找出哪里出了问题。当运行我的代码时，会创建JSON文件，但是数据不会保存到文件中，并且会出现错误（见图）。问题出在“保存密码”部分

from tkinter import *
from tkinter import messagebox
from random import choice, randint, shuffle
import pyperclip
import json
# ---------------------------- PASSWORD GENERATOR ------------------------------- #

def generate_password():
    letters = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z']
    numbers = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9']
    symbols = ['!', '#', '$', '%', '&', '(', ')', '*', '+']

    password_letters = [choice(letters) for _ in range(randint(8, 10))]
    password_symbols = [choice(symbols) for _ in range(randint(2, 4))]
    password_numbers = [choice(numbers) for _ in range(randint(2, 4))]

    password_list = password_letters + password_symbols + password_numbers
    shuffle(password_list)
    password = "".join(password_list)
    password_entry.insert(0, password)
    pyperclip.copy(password)


# ---------------------------- SAVE PASSWORD ------------------------------- #
def save():
    websites = website_entry.get()
    email = email_entry.get()
    passwords = password_entry.get()
    new_data = {
        website: {
            "email": email,
            "password": password,
        }
    }

    if len(websites) == 0 or len(passwords) == 0:
        messagebox.showinfo(title="Oops", message="Please make sure you haven't left any fields empty")
    else:
        with open("data.json", "w") as data_file:
            json.dump(new_data, data_file)
            website_entry.delete(0, END)
            password_entry.delete(0, END)




# ---------------------------- UI SETUP ------------------------------- #
window = Tk()
window.title("Password Manager")
window.config(padx=50, pady=50)

canvas = Canvas(height=200, width=200)
canvas.grid(column=1, row=0)
lock = PhotoImage(file="logo.png")
canvas.create_image(100, 100, image=lock)

website = Label(text="Website:")
website.grid(column=0, row=1, sticky="e")

email_user_name = Label(text="Email/Username:")
email_user_name.grid(column=0, row=2, sticky="e")

password = Label(text="Password:")
password.grid(column=0, row=3, sticky="e")

website_entry = Entry(width=35)
website_entry.focus()
website_entry.grid(column=1, row=1, columnspan=2, sticky="w")

email_entry = Entry(width=35)
email_entry.insert(END, "michaeljohnacton@gmail.com")
email_entry.grid(column=1, row=2, columnspan=2, sticky="w")

password_entry = Entry(width=35)
password_entry.grid(column=1, row=3, sticky="w")

generate_button = Button(text="Generate Password", width=29, command=generate_password)
generate_button.grid(column=1, row=4, columnspan=2, sticky="w")

add_button = Button(text="Add", width=29, command=save)
add_button.grid(column=1, row=5, columnspan=2, sticky="w")
window.mainloop()

错误列表：

Exception in Tkinter callback
Traceback (most recent call last):
  File"C:\Users\mikea\AppData\Local\Programs\Python\Python39\lib\tkinter\__init__.py", line 1884, in __call__
    return self.func(*args)

File "C:\Users\mikea\Downloads\password-manager-start\main.py", line 40, in save
    json.dump(new_data, data_file)

File"C:\Users\mikea\AppData\Local\Programs\Python\Python39\lib\json\__init__.py", line 179, in dump
    for chunk in iterable:

File "C:\Users\mikea\AppData\Local\Programs\Python\Python39\lib\json\encoder.py", line 431, in _iterencode
    yield from _iterencode_dict(o, _current_indent_level)

File "C:\Users\mikea\AppData\Local\Programs\Python\Python39\lib\json\encoder.py", line 405, in _iterencode_dict
    yield from chunks

File "C:\Users\mikea\AppData\Local\Programs\Python\Python39\lib\json\encoder.py", line 405, in _iterencode_dict
    yield from chunks

File "C:\Users\mikea\AppData\Local\Programs\Python\Python39\lib\json\encoder.py", line 438, in _iterencode
    o = _default(o)

File "C:\Users\mikea\AppData\Local\Programs\Python\Python39\lib\json\encoder.py", line 179, in default
    raise TypeError(f'Object of type {o.__class__.__name__} '
TypeError: Object of type Label is not JSON serializable

Answer 1

您正在创建一个名为“网站”的标签，并将其用作字典中的关键字。从网站：更改为“网站”：