> ...the article is from January 2007; I'd wager that Python has > evolved and had a wealth of optimisations since then... The observations I made regarding

> ...the article is from January 2007; I'd wager that Python has > evolved and had a wealth of optimisations since then... The observations I made regarding list-comprehensions vs map have been true since list comprehensions were first introduced. > Did you try itertools.imap instead? Vanilla map gives us a list; > imap gives us a generator. Don't see why that would make any difference (except to confuse the benchmark, as the python3 examples in this thread show.)