有没有办法将 Python 3.8.3 设置为 macOS Catalina（版本 10.15.2）上的默认 Python 版本？
我已经完成的步骤：
- 看看它安装在哪里。
ls -l /usr/local/bin/python*
我得到的输出是这样的：
lrwxr-xr-x 1 jeena admin 36 Mar 20 2019 /usr/local/bin/python -> ../Cellar/python@2/2.7.16/bin/python
lrwxr-xr-x 1 jeena admin 39 May 20 12:43 /usr/local/bin/python-build -> ../Cellar/pyenv/1.2.18/bin/python-build
lrwxr-xr-x 1 jeena admin 43 Mar 20 2019 /usr/local/bin/python-config -> ../Cellar/python@2/2.7.16/bin/python-config
lrwxr-xr-x 1 jeena admin 37 Mar 20 2019 /usr/local/bin/python2 -> ../Cellar/python@2/2.7.16/bin/python2
lrwxr-xr-x 1 jeena admin 44 Mar 20 2019 /usr/local/bin/python2-config -> ../Cellar/python@2/2.7.16/bin/python2-config
lrwxr-xr-x 1 jeena admin 39 Mar 20 2019 /usr/local/bin/python2.7 -> ../Cellar/python@2/2.7.16/bin/python2.7
lrwxr-xr-x 1 jeena admin 46 Mar 20 2019 /usr/local/bin/python2.7-config -> ../Cellar/python@2/2.7.16/bin/python2.7-config
lrwxr-xr-x 1 root wheel 69 May 20 12:22 /usr/local/bin/python3 -> ../../../Library/Frameworks/Python.framework/Versions/3.8/bin/python3
lrwxr-xr-x 1 root wheel 76 May 20 12:22 /usr/local/bin/python3-config -> ../../../Library/Frameworks/Python.framework/Versions/3.8/bin/python3-config
lrwxr-xr-x 1 root wheel 71 May 20 12:22 /usr/local/bin/python3.8 -> ../../../Library/Frameworks/Python.framework/Versions/3.8/bin/python3.8
lrwxr-xr-x 1 root wheel 78 May 20 12:22 /usr/local/bin/python3.8-config -> ../../../Library/Frameworks/Python.framework/Versions/3.8/bin/python3.8-config
lrwxr-xr-x 1 jeena admin 37 Mar 20 2019 /usr/local/bin/pythonw -> ../Cellar/python@2/2.7.16/bin/pythonw
lrwxr-xr-x 1 jeena admin 38 Mar 20 2019 /usr/local/bin/pythonw2 -> ../Cellar/python@2/2.7.16/bin/pythonw2
lrwxr-xr-x 1 jeena admin 40 Mar 20 2019 /usr/local/bin/pythonw2.7 -> ../Cellar/python@2/2.7.16/bin/pythonw2.7
- 将默认的 python 符号链接更改为我想从上面使用的版本：
ln -s -f /usr/local/bin/python3.8 /usr/local/bin/python2.7
然后我又检查了版本：
python --version
我得到的结果是 -->Python 2.7.16
我也尝试过alias python="/usr/bin/python3.8"但遗憾的是它仍然是 Python 2.7.16
我认为你可以运行以下命令：
rm /usr/local/bin/python
ln -s /usr/local/bin/python3.8 /usr/local/bin/python
在你的 ~/.zshrc 或 ~/.bashrc 中，放入
export PATH=/usr/local/bin:$PATH
然后启动新终端进行测试
echo $PATH
确保 /usr/local/bin 在 /usr/bin 之前
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