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closes bpo-36188: Clean up 'unbound' method left-overs. (GH-12169)

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Methods are always bound, and `__self__` can no longer be `NULL`
(`method_new()` and `PyMethod_New()` both explicitly check for this).

Moreover, once a bound method is bound, it *stays* bound and won't be re-bound
to something else, so the section in the datamodel that talks about accessing
an methods in a different descriptor-binding context doesn't apply any more in
Python 3.
This commit is contained in:
Martijn Pieters 2019-03-05 05:19:34 +00:00 • committed by Benjamin Peterson
parent 0983fcd0d5
commit b727239575
3 changed files with 5 additions and 24 deletions
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6
Doc/reference/datamodel.rst
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@ -578,12 +578,6 @@ Callable types
to be bound. The new method's :attr:`__func__` attribute is the original
function object.
When a user-defined method object is created by retrieving another method
object from a class or instance, the behaviour is the same as for a
function object, except that the :attr:`__func__` attribute of the new
instance is not the original method object but its :attr:`__func__`
attribute.
When an instance method object is created by retrieving a class method
object from a class or instance, its :attr:`__self__` attribute is the
class itself, and its :attr:`__func__` attribute is the function object