関連ワード:  difference in python 2 and python 3    difference between python 2.7 and python 3    difference between python 2 x and python 3 x    major difference between python 2 and python 3    main differences between python 2 and python 3    key differences between python 2 and python 3    python 2 and python 3    python 2 and python 3 diff    python 2 and python 3 on same machine    explain the difference between python 2 and python 3