On 5/26/2011 2:08 PM, Guido van Rossum wrote:
Sorry to butt in here, but I agree with Eric that it was better
before. There is a common idiom, *pointer++ =<something>, and
whenever you see that you know that you are appending something to an
output buffer. Perhaps the most important idea here is that this
maintains the *invariant* "pointer points just after the last thing in
the buffer". Always maintaining the invariant is better than trying to
micro-optimize things so as to avoid updating dead values. The
compiler is better at that.
This explanation makes sense (more than Eric's version of perhaps the
same thing ;-).
http://bugs.python.org/issue12188
"A condensed version of the above added to PEP 7 would help new
developers see the usage as local idiom rather than style bug."
Terry J. Reedy
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