python - 需要定义字典而不对其进行更改

Question

我正在尝试做一个密码保护程序，用户可以在其中插入密码并将其保存到计算机中。我从

password = str(input("What is your password that you want to save?"))
url = str(input("Which is the site that you want your password to save to?"))
password_saved = {url : password}
with open('password_saved', 'wb') as password_saved_file:
 pickle.dump(password_saved, password_saved_file)
print(password_saved)

但是，password_saved = {url:password}将整个字典重置为那个，所以如果你运行它，它只会重置为一个，而不是保存所有它。因此，我尝试将其替换为：

password_saved[url] = password

但是，它会说它没有定义。如何在不对其进行任何更改（包括空格）的情况下定义字典？

标签： pythondictionarypasswordscloud

Answer 1

首先，声明一个字典，然后将索引和值传递给字典。

password_saved = {}
password_saved[url] = password