bpo-43721: Fix docstrings for property.getter/setter/deleter (GH-31046)

(cherry picked from commit e3d348a)

Co-authored-by: Irit Katriel <[email protected]>

Author: miss-islington

Misc/NEWS.d/next/Core and Builtins/2022-02-01-10-05-27.bpo-43721.-1XAIo.rst

@@ -0,0 +1 @@
+Fix docstrings of :attr:`~property.getter`, :attr:`~property.setter`, and :attr:`~property.deleter` to clarify that they create a new copy of the property.

Objects/descrobject.c

@@ -1510,7 +1510,7 @@ static PyMemberDef property_members[] = {
 
 
 PyDoc_STRVAR(getter_doc,
-             "Descriptor to change the getter on a property.");
+             "Descriptor to obtain a copy of the property with a different getter.");
 
 static PyObject *
 property_getter(PyObject *self, PyObject *getter)
@@ -1520,7 +1520,7 @@ property_getter(PyObject *self, PyObject *getter)
 
 
 PyDoc_STRVAR(setter_doc,
-             "Descriptor to change the setter on a property.");
+             "Descriptor to obtain a copy of the property with a different setter.");
 
 static PyObject *
 property_setter(PyObject *self, PyObject *setter)
@@ -1530,7 +1530,7 @@ property_setter(PyObject *self, PyObject *setter)
 
 
 PyDoc_STRVAR(deleter_doc,
-             "Descriptor to change the deleter on a property.");
+             "Descriptor to obtain a copy of the property with a different deleter.");
 
 static PyObject *
 property_deleter(PyObject *self, PyObject *deleter)