Re: Sorting a multidimensional array by multiple keys

Rehceb Rotkiv <rehceb@xxxxxxxxxxx> wrote:

Wait, I made a mistake. The correct result would be

reaction is BUT by the
pattern , BUT it is
rapid , BUT it is
sea , BUT it is
sodium , BUT it is
this manner BUT the dissolved

because "by the" comes before and "the dissolved" after "it is". Sorry
for the confusion.

data = [
"reaction is BUT by the",
"sodium , BUT it is",
"sea , BUT it is",
"this manner BUT the dissolved",
"pattern , BUT it is",
"rapid , BUT it is",
]
data = [ s.split() for s in data]
from pprint import pprint
pprint(data)
[['reaction', 'is', 'BUT', 'by', 'the'],
['sodium', ',', 'BUT', 'it', 'is'],
['sea', ',', 'BUT', 'it', 'is'],
['this', 'manner', 'BUT', 'the', 'dissolved'],
['pattern', ',', 'BUT', 'it', 'is'],
['rapid', ',', 'BUT', 'it', 'is']]
from operator import itemgetter
data.sort(key=itemgetter(0))
data.sort(key=itemgetter(1))
data.sort(key=itemgetter(4))
data.sort(key=itemgetter(3))
pprint(data)
[['reaction', 'is', 'BUT', 'by', 'the'],
['pattern', ',', 'BUT', 'it', 'is'],
['rapid', ',', 'BUT', 'it', 'is'],
['sea', ',', 'BUT', 'it', 'is'],
['sodium', ',', 'BUT', 'it', 'is'],
['this', 'manner', 'BUT', 'the', 'dissolved']]
.

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