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Add more tests. Fix code excerpt. (GH-25549)
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@ -953,6 +953,20 @@ The documentation shows a typical use to define a managed attribute ``x``:
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def delx(self): del self.__x
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x = property(getx, setx, delx, "I'm the 'x' property.")
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.. doctest::
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:hide:
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>>> C.x.__doc__
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"I'm the 'x' property."
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>>> c.x = 2.71828
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>>> c.x
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2.71828
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>>> del c.x
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>>> c.x
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Traceback (most recent call last):
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...
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AttributeError: 'C' object has no attribute '_C__x'
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To see how :func:`property` is implemented in terms of the descriptor protocol,
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here is a pure Python equivalent:
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@ -1364,9 +1378,10 @@ Using the non-data descriptor protocol, a pure Python version of
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"A doc for 'T'"
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The code path for ``hasattr(obj, '__get__')`` was added in Python 3.9 and
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makes it possible for :func:`classmethod` to support chained decorators.
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For example, a classmethod and property could be chained together:
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The code path for ``hasattr(type(self.f), '__get__')`` was added in
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Python 3.9 and makes it possible for :func:`classmethod` to support
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chained decorators. For example, a classmethod and property could be
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chained together:
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.. testcode::
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