On 17 February 2017 at 04:59, Chris Angelico <ros...@gmail.com> wrote:
> On Fri, Feb 17, 2017 at 2:13 PM, Mikhail V <mikhail...@gmail.com> wrote: > > Common use case: > > > > L = [1,3,5,7] > > > > for i over len(L): > > e = L[i] > > > > or: > > > > length = len(L) > > for i over length: > > e = L[i] > > Better use case: > > for i, e in enumerate(L): > > This would be more compact, yet less readable, more error prone variant. I'd avoid it it all costs and even if I don't need the index further in loop body, (which happens rarely in my experience) I write e=L[i] in second line to make the code more verbose and keep the flow order. So your variant (and those proposed in PEP-212) could serve in list comprehensions for example, but for common 'expanded' code I find it decline of readability, and creating totally different variants for same iteration idea. But partially that could be simply matter of habit and love to contractions. Mikhail
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