Генератор пароля

import random

def generatePassword(pwlength):

  alphabet = "abcdefghijklmnopqrstuvwxyz"

  passwords = [] 

  for i in pwlength:

    password = "" 

    for j in range(i):

      next_letter_index = random.randrange(len(alphabet))

      password = password + alphabet[next_letter_index]

    password = replaceWithNumber(password)

    password = replaceWithUppercaseLetter(password)

    passwords.append(password) 

  return passwords

def replaceWithNumber(pword):

  for i in range(random.randrange(1,3)):

    replace_index = random.randrange(len(pword)//2)

    pword = pword[0:replace_index] + str(random.randrange(10)) + pword[replace_index+1:]

    return pword

def replaceWithUppercaseLetter(pword):

  for i in range(random.randrange(1,3)):

    replace_index = random.randrange(len(pword)//2,len(pword))

    pword = pword[0:replace_index] + pword[replace_index].upper() + pword[replace_index+1:]

    return pword

def main():

  numPasswords = int(input("How many passwords do you want to generate? "))

  print("Generating " +str(numPasswords)+" passwords")

  passwordLengths = []

  print("Minimum length of password should be 3")

  for i in range(numPasswords):

    length = int(input("Enter the length of Password #" + str(i+1) + " "))

    if length<3:

      length = 3

    passwordLengths.append(length)

  Password = generatePassword(passwordLengths)

  for i in range(numPasswords):

    print ("Password #"+str(i+1)+" = " + Password[i])

main()