[英]creating a login system with python
所以我是 python 的新手,並試圖創建一個簡單的登錄系統來注冊用戶和登錄,但我在密碼和用戶名驗證方面遇到了問題,下面是代碼(請注意,我已經將我的代碼划分為不同的模塊,因為我正在考慮實現將來:
register module
import re
def register():
with open('username.txt', mode='a')as user_file:
username = input('Enter Username : ')
user_file.write(f"{username}\n")
with open('password.txt', mode='a')as pass_file:
password = input('Enter Password: ')
pattern= re.compile(r'[a-zA-Z0-9@#!$%^&*]{8,}')
if password==pattern.fullmatch(password):
pass_file.write(f'{password}\n')
else:
print("your password should be atleast 8 characters long!")
login module
def login() :
l_user = input('Username: ')
l_pass = input('Password: ')
with open('username.txt', mode='r')as user_file:
for users in user_file:
validate_u = user_file.readlines()
with open('password.txt', mode='r')as pass_file:
for passwords in pass_file:
validate_p = pass_file.readlines()
if l_user==validate_u and l_pass==validate_p:
print('hello')
else:
print('login failed')
finally main module
import Enigma_Register
import Enigma_login
print('1-Login\n2-Register')
choice = int(input("enter choice: "))
if choice == 1:
Enigma_login.login()
elif choice == 2:
Enigma_Register.register()
Enigma_login.login()
else:
print('Invalid Choice!')
對於您的登錄 function,將最后四行替換為:
if l_user+"\n" in validate_u: #ReadLines() adds newlines
user_num = validate_u.index(l_user+"\n")
if l_pass+"\n" == validate_p[user_num]:
print("Password correct!")
else:
print("Password incorrect!")
else:
print("Cannot find your username!")
此外,user_file 中的for users in user_file
中for passwords in pass_file
是不必要的:只需將readlines()
方法放在自己的位置上,沒有循環。
此外,將if password==pattern.fullmatch
替換為if pattern.match(password)
。
我還建議在您驗證密碼之前將文件寫入移動,否則可能會出現沒有密碼的“幽靈用戶名”,很容易導致問題; 或者您可以在password = input("Enter password: ")
之后替換register()
function 中的所有代碼
pattern = re.compile( [YOUR REGEX HERE] )
while not pattern.match(password):
print("Your password is invalid.")
pass_file.write(f'{password}\n')
user_file.write(f'{username}\n')
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