docker_compose_repo = 'https://github.com/docker/compose/releases/latest'

def update_docker_compose():
    package_url_pattern = 'https://github.com/docker/compose/releases/download/%s/docker-compose-Linux-x86_64'
    latest_url = urlopen(docker_compose_repo).geturl()
    index = latest_url.rindex("/")
    latest_version = latest_url[index+1:]
    filename = 'docker-compose-Linux-x86_64-' + latest_version
    if path.isfile(package_local['docker'] + filename):
        print('latest version %s was existed' % filename)
        return False

    url = package_url_pattern % latest_version

    clean_local_package_by_prefix(package_local['docker'], 'docker-compose-Linux-x86_64', '*')
    update_local_package(url, filename, package_local['docker'])