On Wed, Apr 1, 2009 at 4:29 PM, John Ehresman <j...@wingware.com> wrote: > I've written a proof of concept patch to add a hook to PyDict_SetItem at > http://bugs.python.org/issue5654 My motivation is to enable watchpoints in > a python debugger that are called when an attribute or global changes. I > know that this won't cover function locals and objects with slots (as Martin > pointed out). > > We talked about this at the sprints and a few issues came up: > > * Is this worth it for debugger watchpoint support? This is a feature that > probably wouldn't be used regularly but is extremely useful in some > situations. > > * Would it be better to create a namespace dict subclass of dict, use it for > modules, classes, & instances, and only allow watches of the subclass > instances? > > * To what extent should non-debugger code use the hook? At one end of the > spectrum, the hook could be made readily available for non-debug use and at > the other end, it could be documented as being debug only, disabled in > python -O, & not exposed in the stdlib to python code.
Have you measured the impact on performance? Collin _______________________________________________ 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
