On 24/03/2014 18:58, Mark H Harris wrote:
On 3/24/14 4:58 AM, Mark Lawrence wrote:
Where do you get reduce from if it's not in the standard library?
That was "a" proposal for 3000. Its there, but its not on the
built-ins; ie., you have to import it. The confusion: why reduce, why
not filter, nor map? {rhetorical}
So it is in the standard library then. And I'm not confused, seeing
this must have been decided years ago as Python 3 was released some five
years ago.
As for lambda I've no real interest in it, other than when copying
examples
where it's used to (say) provide a key function.
This is one of my main points to Steven. In my experience "most" people
do not intend to use lambda for anything; they are trying to sort this
or that and don't quite know how to get the key right and some helpful
somebody gives them a key=lambda yadda yadda . They use it, and it
works, but they are scratching their head saying to themselves, "what it
that, how does it work, how can I understand it and on and on".
More fool them, I write Python as I let it take away the head
scratching, not add to it. If I wanted to start head scratching maybe
I'd go and investigate what line 247 of gcmodule.c does, but funnily
enough I've never been there, and don't intend starting now.
That is what we mean by confusing. Or another really great example is
this thread. Somebody asks about a language feature and somebody else
helpfully answers the question by providing them with a similar lambda!!
One of the joys of this list from my POV, YMMV.
Its the programmer's equivalent of explanation by reference to a more
complicated analogy; which leaves the OP left with, "Thanks for all the
responses".
marcus
PS You are absolutely right, all the expanding double spaces become
very annoying when viewed on Thunderbird; it is exasperating, genuinely.
Yep, but like I said the situation has improved, partly thanks to the
guys who improved the words on the wiki showing how to successfuly use
gg. Thanks fellas :)
--
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.
Mark Lawrence
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