[Tutor] reduce with comprehension

[Kent Johnson]

János Juhász wrote:
> Hi,
> 
> I can't imagine how this could be made with list comprehension.
> 
>>>>import operator
>>>>a = (([1],[2],[3,31,32],[4]), ([5],[6],[7, 71, 72]), ([8],[9]))
>>>>reduce(operator.add, a) # it makes a long list now
> 
> Is it possible to substitute reduce with comprehension anyway ?

Not that I know. Why are you trying to eliminate reduce()? If it is for compatibility with Python 3.0, PEP 3000 recommends replacing reduce() with an explicit loop.
http://www.python.org/peps/pep-3000.html#built-in-namespace

Kent
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