50 ms·

Agreed 100%, this type of constructions should be avoided in the first place in favor of more "readable" ones but this happens in a fair amount of code that I'v

• maxerickson 12y ago
  Some of it seems to come from people cargo-culting their knowledge of anonymous and first class functions, so they end up believing that the only way to pass a function around is to construct it anonymously.
  • nine_k 12y ago
    In the particular case of constructing several similar functions that do essentially the same thing, lambda is a rather natural choice. Being more explicit and less hacky can well be combined with staying true to functional style: from functools import partial mul = lambda x, y: x*y # could use int.__mul__, too multipliers = [partial(mul, n) for n in range(5)] It does the closure-capturing of n for you.
    • maxerickson 12y ago
      A function defined with def would work just the same there. It would have a big ugly 'return' in it and be a few characters longer, but it would work the same, so I don't see what lambda brings to it.
      • nine_k 12y ago
        Both def and lambda would fail identically in this context.