[Python-Dev] PEP 8 modernisation (original) (raw)

Alexander Shorin kxepal at gmail.com
Fri Aug 2 13:02:01 CEST 2013

On Fri, Aug 2, 2013 at 1:10 PM, Nick Coghlan <ncoghlan at gmail.com> wrote:

Lambda was almost removed in Python 3.

Using dict to store lambdas: > op = { 'add': lambda x,y: x*y, 'mul': lambda x, y: x+y} Shows the hack to bypass PEP8 guides. Do you like to see code above instead of: add = lambda x,y: x*y mul = lambda x, y: x+y Probably, I don't since dict is a blackbox and I have to check things first before use them. People are free to write their own style guides that disagree with pep 8 (a point which is now made explicitly in the PEP). Disclaimer: I don't try to stand for lambdas, I'm not using them everywhere in my code, but I'd like to know answer for the question "Why lambdas?". Currently, it is "Handy shorthand functions - use them free", but with new PEP-8 statement I really have to think like "Lambdas? Really, why?". Use them for an anonymous function as an expression. All PEP 8 is now saying is that giving a lambda a name is to completely misunderstand what they're for. Cheers, Nick.

Thanks for explanations, Nick, I'd got the point.

-- ,,,^..^,,,

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