René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Typing support for capsules","articleBody":"# Feature or enhancement\n\n### Proposal:\n\nWhile not common, capsule objects can appear in APIs. For example the [Python DLPack protocol](https://dmlc.github.io/dlpack/latest/python_spec.html#implementation) specifies a `__dlpack__` method returning a capsule object.\n\nIt would therefore be nice to add typing support for capsules. Ideally it should be parameterable by the capsule name, because it often serves as a discriminator for the actual C type under the capsule.\n\n```python\nfrom typing import Capsule, Protocol\n\nclass DLPackExportable(Protocol):\n    def __dlpack__(self) -\u003e Capsule[\"dltensor\"]:\n```\n\n\n### Has this already been discussed elsewhere?\n\nThis is a minor feature, which does not need previous discussion elsewhere\n\n### Links to previous discussion of this feature:\n\n_No response_","author":{"url":"https://github.com/pitrou","@type":"Person","name":"pitrou"},"datePublished":"2023-09-19T07:08:46.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":16},"url":"https://github.com/109562/cpython/issues/109562"}