执行存储为字符串值的模块

Question

我正在调用字符串和随机函数来制作密码生成器。我想确保它尽可能随机，但为此我认为我需要从 string 函数调用 __all__ ，然后从列表中随机选择一个可能的值，然后执行它。

我正在使用 exec 命令执行来自 __any__ 的一个随机字符串，但我猜 exec 在函数返回 None 时不起作用。对此问题的任何解决方案或解决问题的替代观点都可能有所帮助。

import random
from  string import *
from string import __all__
while True: #Loop can be ignored, it's just for giving user choice to quit or not. Will add options later
    required_length = input("Enter the length of the password : ") #Length of the password is stored
    letter = __all__ #List containing all the values of string. 
    password = '' #String which will store password
    counter = 1
    while  counter <= int(required_length):
        password = password + str(exec(random.choice(letter))) #Problematic part, the exec statment return None 
        counter += 1
    print (password)

Answer 1

您可以使用以下代码从所有字符串字符生成密码。

import random
from  string import *
from string import __all__
while True: #Loop can be ignored, it's just for giving user choice to quit or not. Will add options later
    required_length = input("Enter the length of the password : ") #Length of the password is stored
    letter = "".join([eval(i) for i in __all__ if not callable(eval(i))]) #List containing all the values of string. 
    password = '' #String which will store password
    counter = 1
    while  counter <= int(required_length):
        password = password + str(random.choice(letter)) #Problematic part, the exec statment return None 
        counter += 1
    print (password)

注意：空白字符有问题，不应作为密码的一部分。所以你必须把那个部分列入黑名单。

执行存储为字符串值的模块

Executing a module stored as string values

python

passwords

python-3.x