制作命令行登录应用程序除了似乎有错误

Question

我正在使用此代码：

import requests
import json
import urllib.request
import random

enteredUserName = str(input("\n\nEnter your username to start signing in ≥ "))

stuff = json.loads(requests.get("https://pastebin.com/raw/HJxYck9H").text)

# UserName = str(stuff['users'][enteredUserName]['username'])

if enteredUserName == "anonymous":
    print("\n\nYou are logging into the public account. Password for the public account is anonymous.")

enteredPassword = str(input("\n\nEnter your password to finish signing in ≥ "))

if enteredPassword == str(stuff['users'][enteredUserName]['password']):
    if enteredUserName == "anonymous":
        print("\n\nHello anonymous user. Welcome to the public account.")
    else:
        print("\n\nHello @" + enteredUserName + ". Welcome to your account.\n\nThis is your user info. Do not give it away.\nUsername is " + enteredUserName + "\nPassword is " + enteredPassword + "\n\n")
else:
    print("\n\nWrong password.")

pastebin 上 JSON 的内容是：

{
  "users": {
    "anonymous": [
      {
        "password": "anonymous"
      }
    ],
    "James123": [
      {
        "password": "Jam3s"
      }
    ],
    "Jack123": [
      {
        "password": "J@ck"
      }
    ]
  }
}

但是当我完成输入用户名和密码时，它显示了这个错误：

Traceback (most recent call last):
  File "~/Documents/Test/Test.py", line 17, in <module>
    if enteredPassword == str(stuff['users'][enteredUserName]['password']):
TypeError: list indices must be integers or slices, not str

我已经将所有内容都转换为字符串，甚至未转换，但没有任何效果！

Answer 1

这是你的结构：

{
  "users": {
    "user_name": [ { "password": ... } ],
    ...
  }
}

但是你访问的方式不对，请按照以下步骤操作：

stuff['users'] 是 dict
stuff['users']['user_name'] 是一个 list

现在您无法访问带有字符串的列表（如 stuff['users']['user_name']['password']）。

您应该访问列表，例如：

stuff['users'][enteredUserName][0]['password']

如果您需要检查一个以上的元素，也可以使用 for

for element in stuff['users']['user_name']:
  # your check here using element['password']

制作命令行登录应用程序除了似乎有错误

Making a command line login application except there seems to be an error

python

python-3.x

python-3.9