why invalid syntax?

Question

input('please press the enter button to register into our website! ')
username= input('enter a username to register: ')
password= int(input('please enter a password to register :'))
input('You will be required to enter your login details to login now. Please presss the enter button now ')
previous_username= input('enter your username to login :')
previous_password= int(input('enter your password to login :')
if username==previous_username and password==previous_password:
print('Login sucessfull!')
print('Welcome {}!'.format(username))
if username==previous_username and password!=previous_password:
print('Failed to login')
print('Wrong password, try again!')
if username!=previous_username and password==previous_password:
print('Failed to login')
print('Wrong username, try again!')
if username!=previous_username and password!=previous_password:
print('Invalid login details')
print('Session ended')
else:
print('TIMEOUT!')

Answer 1

On line6:
previous_password=int(input('enter your password to login:'))
you missed a ")"

Answer 2

I think now it works

Answer 3

Also, you need to use elif in your code;
So:

if username==previous_username and password==previous_password:
print('Login sucessfull!')
print('Welcome {}!'.format(username))
elif username==previous_username and password!=previous_password:
print('Failed to login')
print('Wrong password, try again!')
elif username!=previous_username and password==previous_password:
print('Failed to login')
print('Wrong username, try again!')
elif username!=previous_username and password!=previous_password:
print('Invalid login details')
print('Session ended')
else:
print('TIMEOUT!')

Answer 4

oh i didn't even notice that hahaha
let me check