Conditional iteration

[Marc 'BlackJack' Rintsch]

In <mailman.1648.1166177508.32031.python-list at python.org>, Gabriel
Genellina wrote:

> Be aware that map, filter, and reduce may be dropped in Python 3000.
> http://www.artima.com/weblogs/viewpost.jsp?thread=98196
> (and I won't miss them if gone)

There are `imap` and `ifilter` in the `itertools` module.  I guess/hope
they will stay in Python 3000.  And Guido already said that ``lambda``
will stay, so maybe he changes his mind about `map` and `filter` too.  :-)

Ciao,
	Marc 'BlackJack' Rintsch