Sammo <sammo2828 <at> gmail.com> writes: > > String concatenation has been optimized since 2.3, so using += should > be fairly fast.
This is implementation dependent and shouldn't be relied upon. > > Note that I need to do something to mydata INSIDE the loop, so please > don't tell me to append moredata to a list and then use "".join after > the loop. Then why not just mutate the list and then call "".join? > > Why is the second test so much slower? Probably several reasons: 1. Function call overhead is quite large compared to these simple operations. 2. You are resolving attribute names. -- http://mail.python.org/mailman/listinfo/python-list
