[docs] [issue4934] tp_del and tp_version_tag undocumented

[Antoine Pitrou]

Antoine Pitrou <pitrou at free.fr> added the comment:

I think the reason tp_del isn't documented is that, as we somehow learnt it with the new IO code, it isn't really meant for third-party types.
I would suggest checking with python-dev.

As for tp_version_tag, it's for internal use (it indicated whether the method cache is still fresh), I don't think extension authors should modify it.

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nosy: +pitrou

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