[Baypiggies] python list manipulation using map

[joshua kaderlan]

Others may have gotten there first, but at least I added the completely gratuitous lambda!




>________________________________
>From: joshua kaderlan <jkaderlan at yahoo.com>
>To: Vikram K <kpguy1975 at gmail.com>; "baypiggies at python.org" <baypiggies at python.org>
>Sent: Monday, May 2, 2011 3:51 PM
>Subject: Re: [Baypiggies] python list manipulation using map
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>That's actually a map() call inside a list comprehension. Either a bare map() call or a list comprehension without the map() call will do what you want. 
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>E.g.,
>>>> T2 = map(lambda i: int(i), x)
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>or 
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>>>> T2 = [int(i) for i in x]
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>>________________________________
>>From: Vikram K <kpguy1975 at gmail.com>
>>To: baypiggies at python.org
>>Sent: Monday, May 2, 2011 3:37 PM
>>Subject: [Baypiggies] python list manipulation using map
>>
>>
>>i have a list whose elements are strings. all the elements in the list are numbers but are represented as string type and i wish to convert them to int type. i tried using map but the output is not what i want. please help.
>>
>> x = ['0', '0', '20', '15', '42', '0', '0', '0', '0', '0', '0', '0', '0', '52', '57', '0', '254', '0', '177', '0', '617', '1021979']
>>
>>>>> T2 = [map(int, i) for i in x]
>>>>> T2
>>[[0], [0], [2, 0], [1, 5], [4, 2], [0], [0], [0], [0], [0], [0], [0], [0], [5, 2], [5, 7], [0], [2, 5, 4], [0], [1, 7, 7], [0], [6, 1, 7], [1, 0, 2, 1, 9, 7, 9]]
>>
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