[Python-Dev] PEP 443 - Single-dispatch generic functions
Łukasz Langa
lukasz at langa.pl
Thu May 23 16:13:18 CEST 2013
On 23 maj 2013, at 09:33, Armin Rigo <arigo at tunes.org> wrote:
> Hi,
>
> On Thu, May 23, 2013 at 12:33 AM, Łukasz Langa <lukasz at langa.pl> wrote:
>> Alternative approaches
>> ======================
>
> You could also mention "pairtype", used in PyPy:
Thanks for pointing that out. Information on it added
in http://hg.python.org/peps/rev/b7979219f3cc#l1.7
+PyPy's RPython offers ``extendabletype`` [#pairtype]_, a metaclass which
+enables classes to be externally extended. In combination with
+``pairtype()`` and ``pair()`` factories, this offers a form of
+single-dispatch generics.
+.. [#pairtype]
+ https://bitbucket.org/pypy/pypy/raw/default/rpython/tool/pairtype.py
--
Best regards,
Łukasz Langa
WWW: http://lukasz.langa.pl/
Twitter: @llanga
IRC: ambv on #python-dev
More information about the Python-Dev
mailing list