[Python-Dev] Should we do away with unbound methods in Py3k? (original) (raw)
Nick Coghlan ncoghlan at gmail.com
Sun Nov 25 04:36:26 CET 2007
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Guido van Rossum wrote:
Also, there was discussion of this before: http://mail.python.org/pipermail/python-dev/2005-January/050625.html -- why didn't we decide to do it then?
Skimming that thread, the issues seem to be:
- worse error messages from explicit base class calls if you forget to supply self
- breaking code that uses im_func, im_class, im_self
This led to a mixture of a few +1's and several -0's, so it didn't happen.
Py3k severely reduces the weight of the latter objection though, and we can use the Py3k warnings feature in 2.6 to complain if any code attempts to access im_self, im_class or im_func on an instancemethod object when im_class is None.
Cheers, Nick.
-- Nick Coghlan | ncoghlan at gmail.com | Brisbane, Australia
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