PEP-xxx: Unification of for statement and list-comp syntax

[Heiko Wundram]

Am Mittwoch 24 Mai 2006 06:12 schrieb Tim Roberts:
> At one time, it was said that the "%" operator was the fastest way to
> concatenate strings, because it was implemented in C, whereas the +
> operator was interpreted.  However, as I recall, the difference was hardly
> measurable, and may not even exist any longer.

The difference doesn't exist anymore for CPython (if you join a lot of 
strings), but for Jython (and several other dialects), the fastest way to 
join strings is still "".join(), because there are no optimizations on

a += b

and the likes of it (replacement for the % operator, e.g.).

--- Heiko.