Author: Antonio Cuni <anto.c...@gmail.com> Branch: extradoc Changeset: r3772:5a1477ddb233 Date: 2011-06-22 18:07 +0200 http://bitbucket.org/pypy/extradoc/changeset/5a1477ddb233/
Log: more tweaks diff --git a/talk/ep2011/talk/talk.rst b/talk/ep2011/talk/talk.rst --- a/talk/ep2011/talk/talk.rst +++ b/talk/ep2011/talk/talk.rst @@ -247,12 +247,37 @@ - Huge stack of layers over the bare metal -- Abstraction has a cost |pause| (... or not?) |pause| +- Abstraction has a cost |pause| (... or not?) -- XXX: write a nice diagram showing how far is "a+b" from "add EAX, EBX" (or - equivalent) -.. XXX those slides from google talk can be showed here: http://paste.pocoo.org/show/413859/ +Python is complicated +--------------------- + +How ``a + b`` works (simplified!): + +* look up the method ``__add__`` on the type of a + +* if there is one, call it + +* if it returns NotImplemented, or if there is none, + look up the method ``__radd__`` on the type of b + +* if there is one, call it + +* if there is none, or we get ``NotImplemented`` again, + raise an exception ``TypeError`` + + +Python is a mess +---------------- + +How ``obj.attr`` or ``obj.method()`` works: + +* ... + +|pause| + +* no way to write it down in just one slide Killing the abstraction overhead @@ -515,7 +540,7 @@ - (I wonder why you all are still here instead of busy trying PyPy :-)) - * not all C extensions are supported + * not all C extensions are supported (numpy anyone?) * too much memory (sometimes) _______________________________________________ pypy-commit mailing list pypy-commit@python.org http://mail.python.org/mailman/listinfo/pypy-commit
