awslambda.py 文件源码

def _should_contain_zip_content(value):
    if not isinstance(value, bytes):
        # If it's not bytes it's basically impossible for
        # this to be valid zip content, but we'll at least
        # still try to load the contents as a zip file
        # to be absolutely sure.
        value = value.encode('utf-8')
    fileobj = six.BytesIO(value)
    try:
        with closing(zipfile.ZipFile(fileobj)) as f:
            f.infolist()
    except zipfile.BadZipfile:
        raise ValueError(ERROR_MSG)