[Python-Dev] any support for a methodcaller HOF? (original) (raw)

Alex Martelli aleaxit at gmail.com
Fri Feb 3 16:00:26 CET 2006

On Feb 3, 2006, at 6:47 AM, Giovanni Bajo wrote: ...

use itemgetter and friends but the "correct" way of doing a defferred "x[1]" should let you write "x[1]" in the code. This is my main opposition to partial/itemgetter/attrgetter/methodcaller: they allow deferred execution using a syntax which is not equivalent to that of immediate execution.

I understand your worry re the syntax issue. So what about Michael
Hudson's "placeholder class" idea, where X[1] returns the callable
that will do x[1] when called, etc? Looks elegant to me...

Alex

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