1.安裝Python 3
2.查看Python3 安裝路徑
打開終端,輸入which python3,查看路徑 /Library/Frameworks/Python.framework/Versions/3.7/bin/python3
3.打開配置文件
open ~/.bash_profile
4.寫入外部環境變量
export PATH=${PATH}:/Library/Frameworks/Python.framework/Versions/3.7/bin/python3
5.重命名Python
alias python="/Library/Frameworks/Python.framework/Versions/3.7/bin/python3"
6.關閉文件
7.終端執行命令:source ~/.bash_profile
8.終端執行命令: python檢查Python版本