On 13 February 2014 08:34, Ned Batchelder <n...@nedbatchelder.com> wrote:
> On 2/12/14 12:50 PM, Asaf Las wrote: > >> On Wednesday, February 12, 2014 7:48:51 AM UTC+2, Dave Angel wrote: >> >>> >>> Perhaps if you would state your actual goal, we could judge >>> whether this code is an effective way to accomplish >>> it. >>> DaveA >>> >> >> Thanks! >> >> There is no specific goal, i am in process of building pattern knowledge >> in python by doing some examples. >> >> > Not all patterns are useful. Just because it's been enshrined in the GoF > patterns book doesn't mean that it's good for Python. > Speaking of which, my monitor is currently sitting on my copy of "Design Patterns". A lot of "Design Patterns" isn't directly relevant to Python, because Python either already has various patterns implemented, or obviates the need for them. For example, if you really need a singleton (answer - you don't) just use a module attribute. Functions as objects and iterators being so pervasive means that visitor and related patterns are just a normal style of programming, instead of having to be explicit. Tim Delaney
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