User login (three false chances)

#!/usr/bin/env python 
# -*- coding: utf-8 -*- 
# @Time : 2018/5/6 0006 12:22 
# @Author : Anthony.Waa 
# @Site : 
# @File : User Login (three wrong chances).py 
# @Software: PyCharm 

# demo1 
# define user list 
user_list = [ 
    {'username': 'anthony', 'password': '123'}, 
    {'username': 'chris', ' password': '123'}, 
    {'username': 'alex', 'password': '123'}, 
    {'username': 'oldboy', 'password': '123'}, 
] 

# Definition 
count = 0 

while True: 
    # username and password 
    users = input("Please enter your username:") 
    pasws = input("Please enter your password:") 

    # Loop through the user list 
    for lists in user_list:
        if lists['username'] == users and lists['password'] == pasws: 
            print("Login successful") 
            exit() 
        else: 
            print("Login failed, please log in again.") 
            count += 1 
            break 
    if count == 3: 
        print("Your username or password has been entered incorrectly more than 3 times, log out") 
        exit() 


# ==================== ===================================================== =============== 


# demo2 
# Define user list 
user_list = [ 
    {'username': 'anthony', 'password': '123'}, 
    {'username': 'chris ', 'password': '123'}, 
    {'username': 'alex', 'password': '123'},
    {'username': 'oldboy', 'password': '123'}, 
] 

# Definition 
count = 0

# Define status 
flag = False 

while True: 
    # Username and password 
    users = input("Please enter your username:") 
    pasws = input("Please enter your password:") 

    # Loop through the user list 
    for lists in user_list: 
        if lists['username'] == users and lists['password'] == pasws: 
            flag = True 
        else: 
            pass 
    # Judge the login status 
    if flag: 
        print("Login successful") 
        exit() 
    else: 
        print("Login failed , please log in again.") 
        count += 1 
        flag = False 
    # Determine whether the number of failures exceeds 3 times 
    if count == 3: 
        print("Your username or password has been entered incorrectly more than 3 times, log out") 
        exit( )