can we append a list with another list in Python ?

[inshu chauhan]

Actually what I wanted to do is :

suppose there are 3 lists :

like for xample :

clist = [] an empty list , alist = [1,2,3], blist = [4,5,6]

and the I want the result is clist = [ [1,2,3], [4,5,6] ..]

then I want to read all the lists in clist one by one

like :

 for item in clist:
     print item

which should print:

[1,2,3]
[4,5,6]




On Tue, Oct 23, 2012 at 10:10 PM, inshu chauhan <insideshoes at gmail.com>wrote:

> ok I got it guys...
>
>
> On Tue, Oct 23, 2012 at 10:08 PM, Joshua Landau <
> joshua.landau.ws at gmail.com> wrote:
>
>>  On 23 October 2012 21:06, Joshua Landau <joshua.landau.ws at gmail.com>wrote:
>>
>>>  On 23 October 2012 21:03, Joshua Landau <joshua.landau.ws at gmail.com>wrote:
>>>
>>>> On 23 October 2012 12:07, Jean-Michel Pichavant <jeanmichel at sequans.com
>>>> > wrote:
>>>>
>>>>> ----- Original Message -----
>>>>>
>>>>> > Thankyou.. but my problem is different than simply joining 2 lists
>>>>> > and it is done now :)....
>>>>>
>>>>>
>>>>> A lot of people though you were asking for joining lists, you
>>>>> description was misleading.
>>>>>
>>>>> I'll take a guess: you want to flatten a list of list.
>>>>> "Nested" list comprehensions can do the trick.
>>>>>
>>>>> aList =[[1,5], [2,'a']]
>>>>> [item for sublist in aList for item in sublist]
>>>>>
>>>>> ...
>>>>> [1, 5, 2, 'a']
>>>>>
>>>>> I find it rather difficult to read though.
>>>>
>>>>
>>>> We have a library function for this, in the one-and-only itertools.
>>>>
>>>> >>> listoflists = [list(range(x, 2*x)) for x in range(5)]
>>>>> >>> listoflists
>>>>> [[], [1], [2, 3], [3, 4, 5], [4, 5, 6, 7]]
>>>>> >>> from itertools import chain
>>>>>  >>> list(chain.from_iterable(listoflists))
>>>>> [1, 2, 3, 3, 4, 5, 4, 5, 6, 7]
>>>>
>>>>
>>>> It does exactly what it says... fast and easy-to-read.
>>>
>>>
>>> Note that I think what he really wanted is to go from
>>>
>>> a, b, c = [list(x) for x in (range(10), range(11, 20), range(21, 30))]
>>>
>>> to
>>>
>>>> list(range(30))
>>>
>>>
>> UNDO! UNDO! UNDO!
>>
>> I *meant *to say:
>>
>>  Note that I think what he really wanted is to go from
>>
>> a, b, c = [list(x) for x in (range(10), range(11, 20), range(21, 30))]
>>
>> to
>>
>>> [a, b, c]
>>
>>
>
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