Ԑ\c@saddlmZddlZede_defdYZiZdefdYZ dS(i(tprint_functionNtObjectcBs2eZdZdZgZdZdZdZRS(sI Our own base class. Contains methods to simplify serialization. icCsMt|j}x'|jD]}||kr||=qqW|j|d<|S(Nt __version__(tvarstcopytnosaveR(tselftrvtf((srenpy/object.pyt __getstate__'s   cCs[|jdd}|jj|||jkrA|j|n|jrW|jndS(NRi(tpopt__dict__tupdateRt after_upgradetafter_setstate(Rtnew_dicttversion((srenpy/object.pyt __setstate__5s  N( t__name__t __module__t__doc__RRR tNoneRR(((srenpy/object.pyRs  tSentinelcBs)eZdZdZdZdZRS(s This is used to represent a sentinel object. There will be exactly one sentinel object with a name existing in the system at any time. cCsAtj|d}|dkr=tj||}|t|s  '