__init__.py 文件源码

def _decode(self, o):
        if isinstance(o, dict):
            if len(o) == 1:
                if "$escape" in o:
                    return self._decode_escaped(o['$escape'])
                if "$date" in o:
                    return datetime.fromtimestamp(o["$date"] / 1000.0, timezone.utc)
                if "$binary" in o:
                    return b64decode(o['$binary'])
            if len(o) == 2 and "$type" in o and "$value" in o:
                try:
                    reviver = self.custom_type_hooks[o['$type']]
                except KeyError:
                    raise UnknownTypeError(o["$type"])

                return reviver(o["$value"])

            if self.object_pairs_hook is not None:
                return self.object_pairs_hook((k, self._decode(v)) for k, v in o.items())
            return {k: self._decode(v) for k, v in o.items()}

        if isinstance(o, (list, tuple)):
            return [self._decode(v) for v in o]

        return o