On Mon, Sep 12, 2011 at 4:04 PM, rantingrick <rantingr...@gmail.com> wrote: > > ############################################################ > # Quote # > ############################################################ > # The itertools module is great HOWEVER i believe most # > # people are recreating the functionalities due to the # > # insanely cryptic and/or missing examples from each # > # method # > ############################################################
Have you looked at the online itertools documentation at all? http://docs.python.org/library/itertools.html > py> ''.join(list(itertools.dropwhile(lambda x:x==" ", " hello > word "))) > 'hello word ' > py> ''.join(list(itertools.takewhile(lambda x:x==" ", " hello > word "))) > ' ' These are too complex to be good examples. Drop the lambda and replace it with a built-in. Also, str.join is perfectly capable of taking an iterator as its argument. There is no reason at all to construct a list first. > py> print itertools.compress.__doc__ > compress(data, selectors) --> iterator over selected data > Return data elements corresponding to true selector elements. > Forms a shorter iterator from selected data elements using the > selectors to choose the data elements. > > ############################################################ > # Quote # > ############################################################ > # WTF! Would you like to define a Python "selector". Could # > # it be that we should be using "selector function" or # > # "predicate function" instead? # > ############################################################ Notice that it says "selector elements", not "selector functions". You have misconstrued what this function does. Hint: it does not use predicates at all. I can agree though that this could probably use a simple example in the doc string. -- http://mail.python.org/mailman/listinfo/python-list
