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From: Jussi Piitulainen <jpiitula@ling.helsinki.fi>
Newsgroups: comp.lang.python
Subject: Re: Something is rotten in Denmark...
Date: 03 Jun 2011 09:17:11 +0300
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Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:6916

rusi writes:

> So I tried:
> Recast the comprehension as a map
> Rewrite the map into a fmap (functionalmap) to create new bindings
> 
> def fmap(f,lst):
>     if not lst: return []
>     return [f(lst[0])] + fmap(f, lst[1:])
> 
> Still the same effects.
> 
> Obviously I am changing it at the wrong place...

   >>> fs = [(lambda n : n + i) for i in range(10)]
   >>> [f(1) for f in fs]
   [10, 10, 10, 10, 10, 10, 10, 10, 10, 10]

   >>> fs = list(map(lambda i : lambda n : n + i, range(10)))
   >>> list(map(lambda f : f(1), fs))
   [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]