関連ワード:  python 3 vs python 2.7    python 3 vs python 2    python 3 vs python 2 differences    python 3 vs python 2 syntax    python 3 vs python 2 print    is python 3 better than python 2    python 2.7 vs python 3 differences    python 2.7 vs python 3 print    difference between python 2.7 and 3