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bpo-38530: Offer suggestions on AttributeError (#16856)

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When printing AttributeError, PyErr_Display will offer suggestions of similar 
attribute names in the object that the exception was raised from:

>>> collections.namedtoplo
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: module 'collections' has no attribute 'namedtoplo'. Did you mean: namedtuple?
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Pablo Galindo 2021-04-14 02:36:07 +01:00 • committed by GitHub
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12 changed files with 472 additions and 17 deletions
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7
Doc/library/exceptions.rst
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@ -149,6 +149,13 @@ The following exceptions are the exceptions that are usually raised.
assignment fails. (When an object does not support attribute references or
attribute assignments at all, :exc:`TypeError` is raised.)
The :attr:`name` and :attr:`obj` attributes can be set using keyword-only
arguments to the constructor. When set they represent the name of the attribute
that was attempted to be accessed and the object that was accessed for said
attribute, respectively.
.. versionchanged:: 3.10
Added the :attr:`name` and :attr:`obj` attributes.
.. exception:: EOFError