Sun, 03 Sep 2017 15:54:29 +0900 Yuya Nishihara py3: wrap bytes in encoding.from/toutf8b() with bytestr
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 +3000 +10000 tip