Python Tutorial Was: Guido's regrets: filter and map

[Grant Edwards]

In article <arsni0$pnk$1 at news.netpower.no>, David Brown wrote:

>> I never liked filter, map and reduce.

So don't use them. ;)

> I find lambda and map very useful - used carefully, they can be of great
> value to the readability of a program (letting you write exactly what you
> mean in a short space, without cluttering up the code with unnecessary
> "def"s and function names that are not needed).  Filter is less useful -
> list comprehensions are often easier to read and write.
> Reduce is a lot
> less useful, because it is a lot less obvious what it is doing.

I find both map and filter easily replaced with list comprehensions.  How do
you replace a reduce call with a list comprehension?

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