This isn't trying to snipe. I have written the exact same unnecessary circumlocution in my own code hundreds of times. Hopefully most of them simplified before release, but I'm sure not all. And I "wrote the book", as one says, _Functional Programming in Python_.
Functions as sounds is a powerful but counterintuitive concept. On Wed, Aug 22, 2018, 1:38 PM David Mertz <me...@gnosis.cx> wrote: > On Wed, Aug 22, 2018, 12:40 PM Steven D'Aprano <st...@pearwood.info> > wrote: > >> I believe that many people have a lot of trouble grasping the concept of >> functions as first-class values capable of being passed to other functions >> as data... It took me a long time to stop writing code like this: >> >> map(lambda x: len(x), sequence) >> >> instead of simply map(len, sequence). >> > > That long time is ongoing :-) > > You recently wrote in another thread: > > widget.register(callback=lambda: spam.eggs()) > > Instead of the slightly faster and definitely more direct: > > widget.register(callback=spam.eggs()) > >>
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