On 14 Aug 2009, at 20:39 , Jason R. Coombs wrote:
I've heard it said that Python is not a functional language, but if
that
were really the case, then functools would not exist. In addition to
the
example described above, I've had multiple occasions where having a
general
purpose function composition function would have simplified the
implementation by providing a basic functional construct.
It's not like a basic variable-arity composition function is hard to
implement though, it's basically:
def compose(*funcs):
return reduce(lambda f1, f2:
lambda v:
f1(f2(v)),
funcs)
it'll turn compose(a, b, c, d)(value) into a(b(c(d(value))))
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