My very first "thing" what I'm somewhat proud of, after a week udomy class. Register

[Haulpa]

import time
def log_in ():
    return ()

print("Register:")
ui = []
pw = []
while True == 1:
	userid = input("Give you User name: " )
	password = input("Give your password: ")
	
	if userid in ui:
			print('Userid already in use!')
			True == 1
	else:
		print('You registered successfully!!')
		ui.insert(0, userid)
		pw.insert(0, password)
		print (ui)
		print (pw)
		#True == 1
		break
time.sleep(2)
import os 
os.system('clear')
while True == 1:
	print("Log In:")
	if input("User ID: ") in ui:
	       	if input("Password: ") in pw:
	       		print("Succesfull LogIn!")
	       		
	       		import webbrowser
	       		webbrowser.open('http://www.youtube.com', new=2)
	       		break
	       		True == 4
	       	else:
	       		print("Wrong User name or password!! Try again!!")