Hi Phillip, On Sun, Mar 09, 2008 at 07:05:12PM -0400, Phillip J. Eby wrote: > I did not, however, need the equality of bound methods to be based on > object value equality, just value identity. > > ...at least until recently, anyway. I do have one library that wants > to have equality-based comparison of im_self. What I ended up doing > is writing code that tests what the current Python interpreter is > doing, and if necessary implements a special method type, just for > purposes of working around the absence of im_self equality > testing. However, it's a pretty specialized case (...)
I found myself in exactly the same case: a pretty specialized example where I wanted bound methods to use im_self equality rather than identity, solved by writing my own bound-method-like object. But that's not really hard to do, and the general tendency (which matches my own opinion too) seems to be that using im_self identity is less surprizing. In general, "x.append" is interchangeable with "x.append" even if "x.append is not x.append", so let's go for the least surprizing behavior: "m1.im_self is m2.im_self and m1.im_func==m2.im_func". Objection? A bientot, Armin _______________________________________________ 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
