[Tutor] Sorting of files based on filesize

Kent Johnson kent37 at tds.net
Mon Apr 11 19:17:59 CEST 2005

This is a hard problem. It is a version of the "0-1 knapsack problem" - googling for that might give 
you some ideas.


Klas Marteleur wrote:
> Hi
> Some of my harddrives are getting full and i would like to burn the files to 
> some cheep DVD's. Filesizes range from lets say 1Mb to 1Gb. 
> Ofcourse i would like to optimize the size of each DVD to be as close to 4.7Gb 
> as possible (to save this cheep media :) ).
> There are plenty of software that are able to index my DVD's so sorting 
> between disks is not a problem. Just size.
> What i would like to do is write a Python program that could sort my files 
> (based on size) into chunks as close to a given storage size (DVD 4.7Gb, CD 
> 650Mb...), and minimize the use of disks. Does anyone know of if something 
> like this is done before in Python, that i could look at?
> With a couple of hundred files it should be a lot of possible combinations. So 
> I am not lookng for something absolute, just something that could help me get 
> a little closer to the truth :)
> Its the "sorting function" that i am looking for, getting filesizes and do the 
> actual sorting of files on disk i will worry about later.
> Kind regards
> Klas
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