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v0.5.1
Revision 05b7d9c6675b71d17f5fcf379b3888fba431f14e authored by Christian Heimes on 15 August 2017, 08:55:03 UTC, committed by GitHub on 15 August 2017, 08:55:03 UTC
OpenSSL 1.1.0 to 1.1.0e aborted the handshake when server and client could not agree on a protocol using ALPN. OpenSSL 1.1.0f changed that. The most recent version now behaves like OpenSSL 1.0.2 again. The ALPN callback can pretend to not been set. See https://github.com/openssl/openssl/pull/3158 for more details Signed-off-by: Christian Heimes <christian@python.org> (cherry picked from commit a5c1bab352671e043645163ca50c5211aa657acd)
1 parent fe8d9dc
none.rst
.. highlightlang:: c
.. _noneobject:
The ``None`` Object
-------------------
.. index:: object: None
Note that the :c:type:`PyTypeObject` for ``None`` is not directly exposed in the
Python/C API. Since ``None`` is a singleton, testing for object identity (using
``==`` in C) is sufficient. There is no :c:func:`PyNone_Check` function for the
same reason.
.. c:var:: PyObject* Py_None
The Python ``None`` object, denoting lack of value. This object has no methods.
It needs to be treated just like any other object with respect to reference
counts.
.. c:macro:: Py_RETURN_NONE
Properly handle returning :c:data:`Py_None` from within a C function.
.. versionadded:: 2.4
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