[2] | 1 | import pickle |
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| 2 | from cStringIO import StringIO |
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| 3 | |
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| 4 | class AliasUnpickler( pickle.Unpickler ): |
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| 5 | def __init__( self, aliases, *args, **kw): |
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| 6 | pickle.Unpickler.__init__( self, *args, **kw ) |
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| 7 | self.aliases = aliases |
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| 8 | def find_class( self, module, name ): |
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| 9 | module, name = self.aliases.get((module,name), (module,name)) |
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| 10 | return pickle.Unpickler.find_class( self, module, name ) |
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| 11 | |
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| 12 | class AliasPickleModule( object ): |
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| 13 | def __init__( self, aliases ): |
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| 14 | self.aliases = aliases |
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| 15 | def dump( self, obj, fileobj, protocol=0): |
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| 16 | return pickle.dump( obj, fileobj, protocol ) |
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| 17 | def dumps( self, obj, protocol=0 ): |
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| 18 | return pickle.dumps( obj, protocol ) |
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| 19 | def load( self, fileobj ): |
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| 20 | return AliasUnpickler( self.aliases, fileobj ).load() |
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| 21 | def loads( self, string ): |
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| 22 | fileobj = StringIO( string ) |
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| 23 | return AliasUnpickler( self.aliases, fileobj ).load() |
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