我如何从列表中随机选择用户要求在 python 中使用输入的次数？

Question

对于我的作业，我必须使用 python 创建一个密码生成器。 它必须询问用户他们想要密码的长度，然后它必须使用 random.randint 创建它并将其作为字符串打印出来。 我如何让用户输入将 random.randint 位乘以他们要求的次数？

这就是我迄今为止所拥有的......

# imports modules
import random, time

# defines welcome function
def welcome():
    print('Welcome to the password generator!')
    time.sleep(2)
    print('This program will generate random passwords.')

# create a list
character_list = ['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','0','1','2','3','4','5','6','7','8','9']

# defines enter number function which asks the user to enter a number
def password_gen():
    i = 'Nothing yet'
    while i.isdigit() == False:

        i = input()
        if i.isdigit() == False:
            print('Please enter a number\n')

    return int(i)

for x in range(0,5):
    rc = character_list[random.randint(0,62)]
    print (rc)

# calls functions and runs the program
welcome()
print('Please press enter...')
password_gen()

Answer 1

这几乎在那...

for x in range(0,5):
    rc = character_list[random.randint(0,62)]
    print (rc)

更改为list-comp以构建n项目的单个列表，例如：

rc = [character_list[random.randint(0,62)] for _ in xrange(5)]

---

但是，使用choice然后在列表中生成索引会更容易-然后像现在一样操作，但是重复...

from random import choice
from string import ascii_letters, digits

chars = ascii_letters + digits
# replace 10 with how many....
passwd = ''.join(choice(chars) for _ in xrange(10))

Answer 2

# create a list
character_list = ['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','0','1','2','3','4','5','6','7','8','9']

import random
pas = list() # random password

number = input() # 8
number = int(number) if number.isdigit() else 0

while(number):
    pas.append(random.choice(character_list))
    number -= nu

result = "".join(pas)
print(result)
# 'jjyMQPuK'