Sorting a multidimensional array by multiple keys
Thomas Krüger
newsgroups at nospam.nowire.org
Sat Mar 31 08:53:11 EDT 2007
Rehceb Rotkiv schrieb:
> can I sort a multidimensional array in Python by multiple sort keys? A
> litte code sample would be nice!
You can pass a function as argument to the sort method of a list.
The function should take two arguments and return -1, 0 or 1 as
comparison result. Just like the cmp function.
This will objects in list obj_lst by their id attributes:
def sorter(a, b):
return cmp(a.id, b.id)
obj_lst.sort(sorter)
Thomas
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