def _read_meta(self, spider, request):
        rpath = self._get_request_path(spider, request)
        metapath = os.path.join(rpath, 'pickled_meta')
        if not os.path.exists(metapath):
            return  # not found
        mtime = os.stat(metapath).st_mtime
        if 0 < time() - mtime < self.expiration_secs:
            return  # expired
        with self._open(metapath, 'rb') as f:
            return pickle.load(f)
dataset/ETHPy150Open scrapy/scrapy/scrapy/extensions/httpcache.py/FilesystemCacheStorage._read_meta/swapped operands of `<`