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kovidgoyal · 02-21-2015, 02:38 AM

Hmm, I suppose one workaround would be to have __getitem__ do a deepcopy of the value it returns if that value is a mutable type. That will be a performance penatly though.

02-21-2015, 02:38 AM	#6
kovidgoyal creator of calibre Posts: 45,400 Karma: 27756918 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Hmm, I suppose one workaround would be to have __getitem__ do a deepcopy of the value it returns if that value is a mutable type. That will be a performance penatly though. Last edited by kovidgoyal; 02-21-2015 at 02:49 AM.