[Python-Dev] Return type of round, floor, and ceil in 2.6

[Raymond Hettinger]

[GvR to Tim]
> Do you have an opinion as to whether we should 
> adopt round-to-even at all (as a default)?

For the sake of other implementations (Jython, etc) and for ease of reproducing the results with other tools (Excel, etc), the simplest choice is int(x+0.5).  That works everywhere, it is easy to explain, it runs fast, and it is not hard to get right.

my two cents,

Raymond