Mac系统已安装jedi-language-server但命令行无法找到的问题与解决

按照文档安装jedi-language-server后，在Mac 13 Ventura系统执行jedi-language-server --help时提示命令未找到，但通过pip3 list可以确认包已安装：

➜  ~ pip3 list | grep jedi
jedi                  0.18.2
jedi-language-server  0.40.0

PATH及环境信息 #

设备为新机器，未使用conda或其他虚拟环境：

➜  ~ echo $PATH
/Users/vzgoll/bin:/usr/local/bin:/opt/homebrew/bin:/opt/homebrew/sbin:/usr/local/bin:/System/Cryptexes/App/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin
➜  ~ which jedi-language-server
jedi-language-server not found
➜  ~ python3 -m site                
sys.path = [
    '/Users/vzgoll',
    '/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.9/lib/python39.zip',
    '/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.9/lib/python3.9',
    '/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.9/lib/python3.9/lib-dynload',
    '/Users/vzgoll/Library/Python/3.9/lib/python/site-packages',
    '/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.9/lib/python3.9/site-packages',
]
USER_BASE: '/Users/vzgoll/Library/Python/3.9' (exists)
USER_SITE: '/Users/vzgoll/Library/Python/3.9/lib/python/site-packages' (exists)
ENABLE_USER_SITE: True

在Arch Linux中安装后可正常执行jedi-language-server --help，因此需要排查Mac系统下的问题原因及解决方法。

pip以用户身份安装包时，会将可执行文件放在USER_BASE/bin目录下（此处为/Users/vzgoll/Library/Python/3.9/bin），但该目录未被添加到系统PATH中，导致终端无法找到jedi-language-server命令。

在~/.zshrc文件中添加以下代码：

pythonUserBaseDir=$(python3 -m site --user-base);
pythonUserBaseBinDir="$pythonUserBaseDir/bin"
export PATH="$pythonUserBaseBinDir:$PATH"
unset pythonUserBaseDir;
unset pythonUserBaseBinDir;

添加完成后，执行source ~/.zshrc使配置生效，之后即可正常使用jedi-language-server命令。

内容的提问来源于stack exchange，提问作者ssayno