Multi-arrays python

Chris Rebert clp2 at rebertia.com
Thu Oct 8 10:13:22 CEST 2009


On Wed, Oct 7, 2009 at 10:21 AM,  <bbarbero at inescporto.pt> wrote:
> Hi again!
>
> After testing the whole day, I have got my goals from the last email, but as
> always, another issues came up! and now that Ive been able to save a list of
> list (or multi-arrays) as below :
>
> ['100.mp3\n' '10008.mp3\n' '10005.mp3\n' '10001.mp3\n' '10006.mp3\n']
> ['10001.mp3\n' '10005.mp3\n' '100.mp3\n' '10008.mp3\n' '10006.mp3\n']
> ['10005.mp3\n' '10001.mp3\n' '100.mp3\n' '10008.mp3\n' '10006.mp3\n']
> ['10006.mp3\n' '10005.mp3\n' '10001.mp3\n' '100.mp3\n' '10008.mp3\n']
> ['10008.mp3\n' '100.mp3\n' '10001.mp3\n' '10005.mp3\n' '10006.mp3\n']
>
> I am not able to manipulate it again! I read it with:
> Myfile.read() and all what I get is a str type data, what make my aim very
> difficult to reach!  What I want, is just to read one line(one specific
> line, so  I wouldnt have to read the whole file) and to get the numbers of
> the songs from that line. Maybe I should save the information in another
> way... But I just get those lines as lists, and write them in a file. Is
> there a better way? I am very receptive to suggestions! Thanks again for
> your help!

Have you considered using the `json` module
(http://docs.python.org/library/json.html) to serialize and
deserialize the lists to/from a file in JSON format?
The `pickle` module is another option:
http://docs.python.org/library/pickle.html

Cheers,
Chris
--
http://blog.rebertia.com



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