meta_data.py 文件源码

def create_media(media):
    """Download media link"""
    if is_valid_url(media.data_value):
        filename = media.data_value.split('/')[-1]
        data_file = NamedTemporaryFile()
        content_type = mimetypes.guess_type(filename)
        with closing(requests.get(media.data_value, stream=True)) as r:
            for chunk in r.iter_content(chunk_size=CHUNK_SIZE):
                if chunk:
                    data_file.write(chunk)
        data_file.seek(os.SEEK_SET, os.SEEK_END)
        size = os.path.getsize(data_file.name)
        data_file.seek(os.SEEK_SET)
        media.data_value = filename
        media.data_file = InMemoryUploadedFile(
            data_file, 'data_file', filename, content_type,
            size, charset=None)

        return media

    return None