import time, pyotp

totp = pyotp.TOTP(pyotp.random_base32(), interval=45)

code = totp.now()

for i in range(0,60):
    
    if totp.verify(code):
        print(f'{code} verified fine at t+{i}')
    else:
        print(f'{code} expired at t+{i}')
        break

    time.sleep(1)