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> Another option is to test for type(value) == int: > > >>> before = ["a",0,0,"b",None,"c","d",0,1,False,0,1,0,3,[],0,1,9,0,0, > {},0,0,9] > >>> wanted = ["a","b",None,"c","d",1,False,1,3,[],1,9, > {},9,0,0,0,0,0,0,0,0,0,0] > >>> after = sorted(before, key=lambda x: x == 0 and type(x) == int) > >>> assert str(after) == str(wanted) > >>> after > ['a', 'b', None, 'c', 'd', 1, False, 1, 3, [], 1, 9, {}, 9, 0, 0, 0, 0, 0, > 0, 0, 0, 0, 0] > > > That way float values will be left alone, too: > > >>> sorted([0.0, 0, False, [], "x"], key=lambda x: x == 0 and type(x) == > int) > [0.0, False, [], 'x', 0] I have been reading this solution > >>> after = sorted(before, key=lambda x: x == 0 and type(x) == int) it is really good, however I don't understand it enough to reimplement something like that myself yet. Though I can that lambda tests for 0 that is equal to an int why does sorted put them to the end? Cheers Sayth

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