def get_token(config):
token = config.get('token')
if token is None:
github = GitHub()
login, password = get_user_credentials()
token = github.create_token(login, password)
if token is None:
otp = raw_input('Two-factor code: ')
token = github.create_token(login, password, otp)
config.put('token', token)
config.save()
return token
