関連ワード:  set python as default ubuntu    set python 3.10 as default ubuntu    set python 3.12 as default ubuntu    set python 3.11 as default ubuntu    set python 3.8 as default ubuntu    set python 3.9 as default ubuntu    set python 2.7 as default ubuntu    set python version as default ubuntu    set python 2 as default ubuntu    set python 3.6 as default ubuntu