Ex01

import os
import random

os.system("cls")

usernameList = []
passwordList = []

while True:
    fullName = input("Nome completo: ")

    # encerra loop
    if fullName == '1':
        os.system("cls")
        break

    splitFullname = fullName.split()
    username = splitFullname[0][:1] + splitFullname[1]

    if username in usernameList:
        print("Usuário " + username + " já cadastrado\n")
    else:
        usernameList.append(username)

        # gera senha temporária
        i = 1
        password = ""
        while i <= 8:
            asciiValue = random.randint(33,255)
            password = password + chr(asciiValue)
            i+=1

        passwordList.append(password)


# imprime resultados
print("Lista de usuários\n\n")
for username in usernameList:
    print(username)

for password in passwordList:
    print(password)