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bpo-36974: expand call protocol documentation (GH-13844)

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CC @encukou 

I'm also adding Petr Viktorin as contributor for vectorcall in the "what's new" section.


https://bugs.python.org/issue36974



Automerge-Triggered-By: @encukou

Automerge-Triggered-By: @encukou
This commit is contained in:
Jeroen Demeyer 2019-11-12 14:08:00 +01:00 • committed by Miss Islington (bot)
parent a12255d8de
commit 9a13a388f2
8 changed files with 467 additions and 293 deletions
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4
Doc/c-api/exceptions.rst
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@ -697,6 +697,8 @@ The following functions are used to create and modify Unicode exceptions from C.
``0`` on success, ``-1`` on failure.
.. _recursion:
Recursion Control
=================
@ -704,6 +706,8 @@ These two functions provide a way to perform safe recursive calls at the C
level, both in the core and in extension modules. They are needed if the
recursive code does not necessarily invoke Python code (which tracks its
recursion depth automatically).
They are also not needed for *tp_call* implementations
because the :ref:`call protocol <call>` takes care of recursion handling.
.. c:function:: int Py_EnterRecursiveCall(const char *where)