Polling until service is ready in Python 3

poll_until_service_is_ready.py

def try_login():
    try:
        response = requests.post(SESSIONS_URI, auth=('username', 'password'), json={})
        return response.headers['...']
    except:
        print('The service is not started yet.')
        return False

def try_get_resources(token):
    try:
        response = requests.get(RESOURCES_URI, headers=...)
        return response.getcode() == 200
    except:
        print('The service is not ready yet.')
        return False

if __name__ == '__main__':
    available_token = False
    while not available_token:
        available_token = try_login()
        time.sleep(10)

    is_service_ready = False
    while not is_service_ready:
        is_service_ready = try_get_resources(available_token)
        time.sleep(10)

    print('The service is now ready!')

    logout()