utils.py 文件源码

def download_neo4j():
    if sys.platform.startswith('win'):
        dist_string = 'windows.zip'
        path = os.path.join(settings.POLYGLOT_TEMP_DIR, 'neo4j.zip')
    else:
        dist_string = 'unix.tar.gz'
        path = os.path.join(settings.POLYGLOT_TEMP_DIR, 'neo4j.tar.gz')
    if os.path.exists(path):
        return path
    os.makedirs(settings.POLYGLOT_TEMP_DIR, exist_ok=True)

    download_link = 'https://neo4j.com/artifact.php?name=neo4j-community-{version}-{dist_string}'.format(
        version=settings.NEO4J_VERSION, dist_string=dist_string)

    archive_path, headers = urlretrieve(download_link, path, data=None)
    return archive_path