On Wed, Apr 18, 2012 at 11:21 PM, lkcl <luke.leigh...@gmail.com> wrote:
> On Apr 11, 9:11 pm, biofob...@gmail.com wrote: > > > I am new to python and only have read the Byte of Python ebook, but want > to move to the web. I am tired of being a CMS tweaker and after I tried > python, ruby and php, the python language makes more sense (if that makes > any "sense" for the real programmers). > > yeah, it does :) python is... the best word i can describe it is: > it's beautiful. it has an elegance of expression that is only marred > by the rather silly mistake of not taking map, filter and reduce into > the list object itself: l.map(str) for example would be intuitive, > compact and elegant. instead, i have to look up how to use map each > and every damn time! the reason for the mistake is historical: map, > filter and reduce were contributed by a lisp programmer. that lisp > programmer, presumably, was used to everything being function(args...) > and it simply didn't occur to anyone to properly integrate map, filter > and reduce properly into the list objects that they work with. > Why not use list comprehension syntax? It gets you map and filter functionality for free, and is more readable than python's clunky version of lambdas. I believe they're faster than the for-loop equivalents, but I'm not sure about the actual map() and filter() functions (reduce() was removed from 3.0 for reasons I will never understand). Map: [val+1 for val in some_list] Filter: [val for val in some_list if val > 0] Alek
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