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gh-150506: Improve inspect.getattr_static example code #150507

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gh-150506: Improve inspect.getattr_static example code #150507

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14 changes: 4 additions & 10 deletions Doc/library/inspect.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -1643,19 +1643,13 @@ You can handle these with code like the following. Note that
for arbitrary getset descriptors invoking these may trigger
code execution::

# example code for resolving the builtin descriptor types
class _foo:
__slots__ = ['foo']

slot_descriptor = type(_foo.foo)
getset_descriptor = type(type(open(__file__)).name)
wrapper_descriptor = type(str.__dict__['__add__'])
descriptor_types = (slot_descriptor, getset_descriptor, wrapper_descriptor)
import types
descriptor_types = (types.MemberDescriptorType, types.GetSetDescriptorType, types.WrapperDescriptorType)

result = getattr_static(some_object, 'foo')
if type(result) in descriptor_types:
if isinstance(result, descriptor_types):
try:
result = result.__get__()
result = result.__get__(some_object)
except AttributeError:
# descriptors can raise AttributeError to
# indicate there is no underlying value
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