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gh-119786: Replace a Sphinx role with a link to Python/errors.c (#124990)

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Adam Turner 2024-10-05 01:00:19 +01:00 • committed by GitHub
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InternalDocs/exception_handling.md
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@ -190,5 +190,6 @@
[Exception chaining](https://docs.python.org/dev/tutorial/errors.html#exception-chaining)
refers to setting the ``__context__`` and ``__cause__`` fields of an exception as it is
being raised. The ``__context__`` field is set by ``_PyErr_SetObject()`` in
:cpy-file:`Python/errors.c` (which is ultimately called by all ``PyErr_Set*()`` functions).
[Python/errors.c](https://github.com/python/cpython/blob/main/Python/errors.c)
(which is ultimately called by all ``PyErr_Set*()`` functions).
The ``__cause__`` field (explicit chaining) is set by the ``RAISE_VARARGS`` bytecode.