Josiah Manson wrote: > I just did some timings, and found that using a list instead of a > string for tok is significantly slower (it takes 1.5x longer). Using a > regex is slightly faster for long strings, and slightly slower for > short ones. So, regex wins in both berevity and speed!
I think the list.append method of building strings may only give you speed improvements when you are adding bigger chunks of strings together instead of 1 character at a time. also: http://docs.python.org/whatsnew/node12.html#SECTION0001210000000000000000 """String concatenations in statements of the form s = s + "abc" and s += "abc" are now performed more efficiently in certain circumstances. This optimization won't be present in other Python implementations such as Jython, so you shouldn't rely on it; using the join() method of strings is still recommended when you want to efficiently glue a large number of strings together. (Contributed by Armin Rigo.)""" I tested both, and these are my results for fairly large strings: [EMAIL PROTECTED]:/tmp$ python /usr/lib/python2.4/timeit.py -s'import foo' 'foo.test(foo.breakLine)' 10 loops, best of 3: 914 msec per loop [EMAIL PROTECTED]:/tmp$ python /usr/lib/python2.4/timeit.py -s'import foo' 'foo.test(foo.breakLineRE)' 10 loops, best of 3: 289 msec per loop -- - Justin -- http://mail.python.org/mailman/listinfo/python-list
