PEP 312 - Making lambdas implicit worries me, surely it's just the name 'lambda' that is bad...
a.schmolck at gmx.net
Mon Mar 3 16:10:20 CET 2003
Erik Max Francis <max at alcyone.com> writes:
> Well, Python isn't Smalltalk, so I don't really know where this gets us.
Geez, I don't know either how looking at a language Z (different from python)
that has and makes extensive use of feature X could *possibly* be helpful for
understanding how (some variant of X) might be useful in python. I thought I
just mention it anyway.
> > If ``[x]`` became ``lambda : x``, it would be completely unusable.
> It would become longer, how is that unusable?
Do you think adding a few keystrokes by replacing
>>> a + b * c
with the more explict
>>> a operatorAddOrMaybeConcatenate (b operatorMultiplyOrMaybeRepeat c
... operatorAtIndexOrMaybeKey 1)
would make python unusable? Or maybe just unpopular?
(Hint: in case the point of how mere "differences in keystrokes" can widely
affect design choices in a language and its libraries was lost on you; do you
really think anyone would dream of introducing a ternary operator if you could
def when(cond, a,b):
if cond: return a()
else: return b()
res = when(cond, :b, :c)
res = when(cond, lambda : b, lambda :c)
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