On 5 Oct 2006, at 20:28, Gregory P. Smith wrote:
I've never liked the "".join([]) idiom for string concatenation; in my opinion it violates the principles "Beautiful is better than ugly." and "There should be one-- and preferably only one --obvious way to do it.". (And perhaps several others.) To that end I've submitted patch #1569040 to SourceForge:
http://sourceforge.net/tracker/index.php? func=detail&aid=1569040&group_id=5470&atid=305470 This patch speeds up using + for string concatenation.
yay! i'm glad to see this. i hate the "".join syntax.
Here here. Being able to write what you mean and have the language get decent performance none the less seems to me to be a "good thing".
have you run any generic benchmarks such as pystone to get a better idea of what the net effect on "typical" python code is?
Yeah, "real world" performance testing is always important with anything that uses lazy evaluation. If you get to control if and when the computation actually happens you have even more scope than usual for getting the benchmark answer you want to see!
Cheers, Nicko