[Tutor] map, filter and lambda functions [filter can take None]

[Allan Crooks]

On 25 Aug 2001, at 23:31, Tim Peters wrote:

> At some point after thanking him, you might try reading the docs too
> <wink>.

In my defence, I'll say that Danny, instead of heading to the docs, 
delved straight into the C code without a second thought. So I'm 
not the only one to forget about the docs. :)

Allan.