On 2007-02-25, Jussi Salmela <[EMAIL PROTECTED]> wrote:
> I'm nitpicking, but the OP has a list of tuples:
> ec = [ item[2:] for item in mainlist if item[:2] == ('eco','con') ]
Jussi,
An excellent nit to pick.
Thank you,
Rich
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On 2007-02-25, Paddy <[EMAIL PROTECTED]> wrote:
> You might also use list comprehensions to accumulate the values you
> need:
>
> ec = [ item[2:] for item in mainlist if item[:2] == ['eco','con'] ]
Thank you, Paddy. That's the syntax I couldn't work out myself.
Rich
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[EMAIL PROTECTED] a écrit :
> While working with lists of tuples is probably very common, none of my
> five Python books or a Google search tell me how to refer to specific items
> in each tuple.
t = "a", "b", "c"
assert t[0] == "a"
assert t[1] == "b"
assert t[2] == "c"
> I find references to
On Feb 25, 5:44 pm, Jussi Salmela <[EMAIL PROTECTED]> wrote:
> Paddy kirjoitti:
>
>
>
> > On Feb 25, 2:01 am, [EMAIL PROTECTED] wrote:
> >> While working with lists of tuples is probably very common, none of my
> >> five Python books or a Google search tell me how to refer to specific items
> >>
On 2007-02-25, Dennis Lee Bieber <[EMAIL PROTECTED]> wrote:
> Item is ALREADY the "current" tuple...
>
> for tpl in mainlist:
> if tpl[0] == "eco" and tpl[1] == "con":
> ec.Append(tpl[2:]) #presuming ec is NOT a list, as Append()
>
Paddy kirjoitti:
> On Feb 25, 2:01 am, [EMAIL PROTECTED] wrote:
>> While working with lists of tuples is probably very common, none of my
>> five Python books or a Google search tell me how to refer to specific items
>> in each tuple. I find references to sorting a list of tuples, but not
>> extr
On Feb 25, 2:01 am, [EMAIL PROTECTED] wrote:
> While working with lists of tuples is probably very common, none of my
> five Python books or a Google search tell me how to refer to specific items
> in each tuple. I find references to sorting a list of tuples, but not
> extracting tuples based on
"Rune Strand" <[EMAIL PROTECTED]> writes:
> if you want numeric adressing, try:
> for i in range(len(mainlist)):
>if mainlist[i][0] == 'eco' etc.
Preferable:
for i,m in enumerate(mainlist):
if m[0] == 'eco' etc.
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On Feb 25, 1:01 pm, [EMAIL PROTECTED] wrote:
> While working with lists of tuples is probably very common, none of my
> five Python books or a Google search tell me how to refer to specific items
> in each tuple. I find references to sorting a list of tuples, but not
> extracting tuples based on
On Feb 25, 3:01 am, [EMAIL PROTECTED] wrote:
> In my case, I have a list of 9 tuples. Each tuple has 30 items. The first
> two items are 3-character strings, the remaining 28 itmes are floats.
>
> I want to create a new list from each tuple. But, I want the selection of
> tuples, and their assi
While working with lists of tuples is probably very common, none of my
five Python books or a Google search tell me how to refer to specific items
in each tuple. I find references to sorting a list of tuples, but not
extracting tuples based on their content.
In my case, I have a list of 9 tupl
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