https://github.com/python/cpython/commit/e3f76e5cfb6196e31c2a70f1082750f14072f1fb
commit: e3f76e5cfb6196e31c2a70f1082750f14072f1fb
branch: main
author: Raymond Hettinger <[email protected]>
committer: rhettinger <[email protected]>
date: 2024-09-01T20:04:33-05:00
summary:
Remove irrelevant detail from example code. (gh-123587)
files:
M Doc/howto/descriptor.rst
diff --git a/Doc/howto/descriptor.rst b/Doc/howto/descriptor.rst
index 66033156a80add..5dd183664a106d 100644
--- a/Doc/howto/descriptor.rst
+++ b/Doc/howto/descriptor.rst
@@ -990,7 +990,7 @@ The documentation shows a typical use to define a managed
attribute ``x``:
AttributeError: 'C' object has no attribute '_C__x'
To see how :func:`property` is implemented in terms of the descriptor protocol,
-here is a mostly pure Python equivalent:
+here is a pure Python equivalent that implements most of the core
functionality:
.. testcode::
@@ -1013,26 +1013,17 @@ here is a mostly pure Python equivalent:
if obj is None:
return self
if self.fget is None:
- raise AttributeError(
- f'property {self.__name__!r} of {type(obj).__name__!r} '
- 'object has no getter'
- )
+ raise AttributeError
return self.fget(obj)
def __set__(self, obj, value):
if self.fset is None:
- raise AttributeError(
- f'property {self.__name__!r} of {type(obj).__name__!r} '
- 'object has no setter'
- )
+ raise AttributeError
self.fset(obj, value)
def __delete__(self, obj):
if self.fdel is None:
- raise AttributeError(
- f'property {self.__name__!r} of {type(obj).__name__!r} '
- 'object has no deleter'
- )
+ raise AttributeError
self.fdel(obj)
def getter(self, fget):
@@ -1105,23 +1096,23 @@ here is a mostly pure Python equivalent:
>>> try:
... cc.no_getter
... except AttributeError as e:
- ... e.args[0]
+ ... type(e).__name__
...
- "property 'no_getter' of 'CC' object has no getter"
+ 'AttributeError'
>>> try:
... cc.no_setter = 33
... except AttributeError as e:
- ... e.args[0]
+ ... type(e).__name__
...
- "property 'no_setter' of 'CC' object has no setter"
+ 'AttributeError'
>>> try:
... del cc.no_deleter
... except AttributeError as e:
- ... e.args[0]
+ ... type(e).__name__
...
- "property 'no_deleter' of 'CC' object has no deleter"
+ 'AttributeError'
>>> CC.no_doc.__doc__ is None
True
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