TypeError：只能将列表（而不是“int”）连接到列表。将2个变量分配给一个变量时出错

Question

我要做的事

我正在使用一个名为password的类和一个名为generate_memorable（生成一个容易记住的密码）和generate_intractice的函数来生成一个密码生成器，这两个函数将生成一个复杂的密码。

我的代码：

import random
import urllib.request
import string

class password:
    def __init__(self, length):
        self.length = length

    def generate_intricate(self, iterations):
        characters = string.ascii_letters + string.digits + string.punctuation
        for p in range(iterations):
            output_password = ''
            for c in range(self.length):
                output_password += random.choice(characters)
            print(output_password)

    def generate_memorable(self, iterations):
        # get some random words
        word_url = "http://svnweb.freebsd.org/csrg/share/dict/words?view=co&content-type=text/plain"
        headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; Win64; x64)'}
        req = urllib.request.Request(word_url, headers=headers)
        response = response = urllib.request.urlopen(req)
        long_txt = response.read().decode()
        words = long_txt.splitlines()

        output_password = ''

        # generate the number of password specified
        for i in range(iterations):
            while len(output_password) != self.length:

                # generate a random number with a length of 3 to 5
                for i in range(random.randint(3, 5)):
                    numbers = random.randint(1, 9)

                # the ouput password is equal to the words from the world_url and numbers put together
                output_password = words + numbers # THIS IS WHERE THE PROBLEM IS OCCURING

                # im trying to make sure that the length of the generated password is equal to the length specified by the user
                if len(output_password) > self.length: # if length of password is larger than length specified
                    difference = len(output_password) - self.length # difference between output password and length specified
                    print(output_password[: -difference]) # print the output password minus the difference.  

                elif len(output_password) < self.length: # if length of output_password is smaller than length specified
                    difference = self.length - len(output_password) # difference = length specified - length of output_password
                    print(output_password,output_password[: difference]) # print output_password + difference characters from output_password. 

                elif len(output_password) == self.length: # if length of output_password = length specified
                    print(output_password)


# Test

password1 = password(20) # password length = 20
password1.generate_memorable(3) # generate a memeorable password (containing words and numbers) 3 times

我的问题

当我运行这个程序时，我得到一个错误:typeerror：只能将列表（不是“int”）连接到列表

完全错误：

回溯（最近一次调用）：文件“C:\users\sbenf\oneDrive\python projects\large projects\adventure_colussus_game\passwordtest.py”，第55行，在password1.generate_memorable(3)#生成一个可记忆密码（包含单词和数字）3次文件“C:\users\sbenf\oneDrive\python projects\large projects\adventure_colussus_game\passwordtest.py”，第37行，在generate_memorable output_password

将错误分解为多个位，以便于读取：

回溯（最近一次调用）：文件“C:\users\sbenf\OneDrive\python projects\large projects\adventure_colussus_game\passwordtest.py”,

password1.generate_memorable(3)#生成可记忆密码（包含单词和数字）3次

文件“C:\users\sbenf\onedrive\python projects\large projects\adventure_colussus_game\passwordtest.py”，第37行，在generate_memorable中

output_password=words+numbers#这是发生问题的地方

TypeError：只能将列表（而不是“int”）连接到列表

我不知道该怎么做，所以我想知道是否有人能给我指明正确的方向。非常感谢：D

Answer 1

您试图将列表(单词)添加到int中，尽管这两种类型都不是要添加的。要解决此问题，您必须将int转换为list，如下所示

output_password = words + [numbers]

Answer 2

如果output_password的最终目标是字符串，那么您需要加入单词列表并在后面添加int（转换为字符串）。

mylist = ["hello", "world"]
numbers = 123
output_password = "".join(words) + str(numbers)

产出：

helloworld123