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PEP 415: Implement suppression of __context__ display with an exception attribute

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This replaces the original PEP 409 implementation. See #14133.
This commit is contained in:
Benjamin Peterson 2012-05-14 22:09:31 -07:00
parent d91dc62379
commit d5a1c44455
12 changed files with 80 additions and 79 deletions
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8
Doc/c-api/exceptions.rst
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@ -471,10 +471,6 @@ Exception Objects
set by ``raise ... from ...``) associated with the exception as a new
reference, as accessible from Python through :attr:`__cause__`.
If there is no cause associated, this returns *NULL* (from Python
``__cause__ is Ellipsis``). If the cause is :const:`None`, the default
exception display routines stop showing the context chain.
.. c:function:: void PyException_SetCause(PyObject *ex, PyObject *ctx)
@ -482,9 +478,7 @@ Exception Objects
it. There is no type check to make sure that *ctx* is either an exception
instance or :const:`None`. This steals a reference to *ctx*.
If the cause is set to :const:`None` the default exception display
routines will not display this exception's context, and will not follow the
chain any further.
:attr:`__suppress_context__` is implicitly set to ``True`` by this function.
.. _unicodeexceptions: