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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Can't pickle generic types","articleBody":"Briefly:\r\n```\r\n\u003e\u003e\u003e import pickle, typing\r\n\u003e\u003e\u003e tp = typing.List[int]\r\n\u003e\u003e\u003e pickle.loads(pickle.dumps(tp))\r\nTraceback (most recent call last):\r\n  File \"\u003cipython-input-5-ae365d48e86d\u003e\", line 1, in \u003cmodule\u003e\r\n    pickle.loads(pickle.dumps(tp))\r\nPicklingError: Can't pickle typing.List[int]: it's not the same object as typing.List\r\n```\r\n\r\nThis can be an issue with certain advanced serialization libraries such as [dill](https://github.com/uqfoundation/dill/issues/179) or [cloudpickle](https://github.com/cloudpipe/cloudpickle/issues/63), which are often used by distributed computing frameworks.\r\n","author":{"url":"https://github.com/pitrou","@type":"Person","name":"pitrou"},"datePublished":"2017-12-07T16:25:49.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":8},"url":"https://github.com/511/typing/issues/511"}