[Tutor] Re: List Comprehensions again

Erik Price erikprice@mac.com
Thu, 24 Jan 2002 23:52:05 -0500


On Thursday, January 24, 2002, at 01:37  PM, Tom Jenkins wrote:

> On Thu, 2002-01-24 at 11:54, kevin parks wrote:
>> I have never been able to get my head around list comprehension and 
>> desperately want too. I wish that there was a *good* little 2-3 page 
>> toot on list comprehensions that start from the very clearest and 
>> simplest examples and built up from there with nice explanations in 
>> between. The www.python.org web site is a bit terse for me and none of

(snip)

> i came to python before list comprehensions.  it took me A LONG TIME to
> understand map/filter/lambda... actually i'll say i still don't really
> understand them.
>
> when i first saw list comprehensions, i thought "I have NO CLUE what
> this is doing".  then i started playing.  i took a map/lambda

(snip)


As a superfledgling, I have to say that I have no idea what you guys are 
talking about.  For the first few messages I figured it was something 
that I could pick up later on.  Now this thread has gone on for several 
days and I'm starting to wonder if I should learn this lambda / list 
comprehensions thing now before I run into the troubles that others 
describe (who seem to be saying that "they wish they'd learned it a 
different way" -- I want to learn it that way first so I can save the 
hassle).

Where should I look for more info, or is this something that can wait 
until I am more comfortable with the language?  (I am just finishing 
tutorials on syntax so you can see that I am really really green at 
this.)


Thank you,
Erik