28 Apr
2011
28 Apr
'11
10:43 p.m.
On Fri, Apr 29, 2011 at 5:51 AM, Raymond Hettinger
* x = obj implies x == obj # assignment really works
While I agree with your point of view regarding the status quo as a useful, practical compromise, I need to call out that particular example:
nan = float('nan') x = nan x == nan False x in locals().values() True
Due to rich comparison and the freedom to implement non-reflexive definitions of "equality", the assignment "x = obj" implies only that: - x is obj - x in locals().values() Cheers, Nick. -- Nick Coghlan | ncoghlan@gmail.com | Brisbane, Australia