On Feb 2, 11:09 pm, Kay Schluehr <[EMAIL PROTECTED]> wrote:
[snip]
While you're waiting for it to be implemented, you can build your own
version as a decorator. Here's an example written in haste:
>>> class composer(object):
def __init__(self, *funcs):
self.funcs = funcs
def __and__(self, other):
if isinstance(other, composer):
return composer(*(self.funcs+other.funcs))
else:
return composer(*(self.funcs+(other,)))
def __call__(self, *args, **kargs):
for func in reversed(self.funcs):
args = (func(*args, **kargs),)
if kargs:
kargs = {}
return args[0]
>>> @composer
def double(x):
return 2*x
>>> @composer
def square(x):
return x*x
>>> double_square = double & square
>>> square_double = square & double
>>> double_square(2)
8
>>> square_double(2)
16
>>> double_square(3)
18
>>> square_double(3)
36
>>> double_square(4)
32
>>> square_double(4)
64
Probably not the best implementation, but you get the idea.
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