将用户名和密码存储到字典中？
[英]Storing username and password into a dictionary?
Currently at the moment im working a small login screen in python, What i want it to do is ask a user to register if theyre isnt a account already created, But one small problem im having is how can i save the username and password into a dictionary, I would also like to know how i would save the dictionary to a .txt file that can be loaded to restore user info/variables if this is possible.
目前我正在使用python中的一个小型登录屏幕，我想要它做的是要求用户注册他们是不是已经创建的帐户，但我遇到的一个小问题是如何将用户名和密码保存到字典，我还想知道我如何将字典保存为.txt文件，如果可能的话，可以加载该文件以恢复用户信息/变量。
Im not too sure whether im meant to ask for help with my code or im allowed to ask questions like this, I just need a reffernce or a little help. Also just to add im not asking for someone to do it for me, Just to give me a shove in the right direction
我不太确定我的意思是要求我的代码提供帮助，或者我允许提出这样的问题，我只需要一个reffernce或一点帮助。也只是为了添加我不要求别人为我做这件事，只是为了给我一个正确的方向推
Please dont flame me ;p
请不要激怒我; p
import sys
import math
user = None
password = None
store = dict()
newUser = True
while newUser == True:
userguess=""
passwordguess=""
print("Hello, Please create a unique username and password.")
user = input("USERNAME: ")
password = input("PASSWORD: ")
store[user] = password
print(store)
That is what i have tried so far, I gathered the storing to dictionary from another page on here, Was just looking for a breakdown on assigning stuff to a key
这就是我到目前为止所尝试的，我在这里从另一个页面收集存储到字典，只是在寻找关键字来分配给一个键的东西
2 个解决方案
#1
4
you dont ... you save a hash into a dictionary (a hash is simpley a non reversable encoding)
你没有...你将哈希保存到字典中（哈希是简单的不可逆编码）
eg: md5("password") == '5f4dcc3b5aa765d61d8327deb882cf99'
例如：md5（“password”）=='5f4dcc3b5aa765d61d8327deb882cf99'
however there is no real way to go from that back to the password
但是没有真正的方法可以从那回到密码
nothing_does_this('5f4dcc3b5aa765d61d8327deb882cf99') == "password"
nothing_does_this（'5f4dcc3b5aa765d61d8327deb882cf99'）==“密码”
(not entirely true... but close enough fo the concept)
（不完全正确......但与概念足够接近）
import hashlib
def create_users()
users = {}
while True:
username = raw_input("Enter Username:")
password = raw_input("Enter Password:")
users[username] = hashlib.md5(password).hexdigest()
if raw_input("continue?")[0].lower() != "y":
return users
def login(userdict):
username = raw_input("Username:")
password = raw_input("Password:")
return userdict.get(username,None) == hashlib.md5(password).hexdigest()
users = create_users()
if login(users):
print "Double Winning!!!"
else:
print "You Lose Sucka!!!"
as pointed out md5 is not a very secure hash, there are much better ones to use sha256 is pretty good still I think, bcrypt is even better (for some definition of better) ... however md5 is a simple hash to help with understanding what they are..
正如指出md5不是一个非常安全的哈希，有更好的使用sha256仍然相当不错我认为，bcrypt甚至更好（对于一些更好的定义）...但是md5是一个简单的哈希来帮助理解它们是什么..
#2
3
If you already have constructed this dictionary, you can save it to a file with pickle.
如果您已经构建了此字典，则可以将其保存到带有pickle的文件中。
pickle.dump( user_dict, open( "save.p", "wb" ) )
However, you should be aware of best practices when storing passwords and make sure you are storing a securely hashed version of the password rather than its value in plaintext.
但是，在存储密码时应注意最佳实践，并确保存储密码的安全哈希版本而不是明文中的值。
注意！
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