Nick Coghlan <ncoghlan <at> gmail.com> writes: > I'm pretty sure the PyPy jit can already pick up and optimise cases > where a dict goes "read-only" (i.e. stops being modified).
No, it doesn't. We handle cases like a type's dict, or a module's dict, by having them use a different internal implementation (while, of course, still being dicts at the Python level). We do *not* handle the case of trying to figure out whether a Python object is immutable in any way. Alex _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
