$ sw_vers ProductName: Mac OS X ProductVersion: 10.11.6 BuildVersion: 15G1212 $ python --version Python 3.5.2 :: Anaconda 4.1.1 (x86_64) $ pip list --format=legacy | grep chainer chainer (1.18.0) import numpy as np import pandas as pd import chainer from chainer import cuda, Function, gradient_check, report, training, utils, Variable from chainer import datasets, iterators, optimizers, serializers