mac 安装mysql client遇到问题

 pip3 install mysqlclient  
Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple
Collecting mysqlclient
  Using cached https://pypi.tuna.tsinghua.edu.cn/packages/de/9c/b176826e8994551ce826404dab97e305a4bb76c8b0a4e016fabda2901c71/mysqlclient-2.2.0.tar.gz (89 kB)
  Installing build dependencies ... done
  Getting requirements to build wheel ... error
  ERROR: Command errored out with exit status 1:
   command: /Users/gaoxianghu/PycharmProjects/aliyunpanCrawler/venv/bin/python /Users/gaoxianghu/PycharmProjects/aliyunpanCrawler/venv/lib/python3.8/site-packages/pip/_vendor/pep517/in_process/_in_process.py get_requires_for_build_wheel /var/folders/3k/wmyqxb017sg6ntf3n3cgx1zr0000gn/T/tmpjs1tjc79
       cwd: /private/var/folders/3k/wmyqxb017sg6ntf3n3cgx1zr0000gn/T/pip-install-7rk3qvdf/mysqlclient_471024006cd3403eb739d20952d3ffbf
  Complete output (22 lines):
  Trying pkg-config --exists mysqlclient
  Command 'pkg-config --exists mysqlclient' returned non-zero exit status 1.
  Trying pkg-config --exists mariadb
  Command 'pkg-config --exists mariadb' returned non-zero exit status 1.
  Traceback (most recent call last):
    File "/Users/gaoxianghu/PycharmProjects/aliyunpanCrawler/venv/lib/python3.8/site-packages/pip/_vendor/pep517/in_process/_in_process.py", line 280, in <module>
      main()
    File "/Users/gaoxianghu/PycharmProjects/aliyunpanCrawler/venv/lib/python3.8/site-packages/pip/_vendor/pep517/in_process/_in_process.py", line 263, in main
      json_out['return_val'] = hook(**hook_input['kwargs'])
    File "/Users/gaoxianghu/PycharmProjects/aliyunpanCrawler/venv/lib/python3.8/site-packages/pip/_vendor/pep517/in_process/_in_process.py", line 114, in get_requires_for_build_wheel
      return hook(config_settings)
    File "/private/var/folders/3k/wmyqxb017sg6ntf3n3cgx1zr0000gn/T/pip-build-env-pjpe0jm7/overlay/lib/python3.8/site-packages/setuptools/build_meta.py", line 355, in get_requires_for_build_wheel
      return self._get_build_requires(config_settings, requirements=['wheel'])
    File "/private/var/folders/3k/wmyqxb017sg6ntf3n3cgx1zr0000gn/T/pip-build-env-pjpe0jm7/overlay/lib/python3.8/site-packages/setuptools/build_meta.py", line 325, in _get_build_requires
      self.run_setup()
    File "/private/var/folders/3k/wmyqxb017sg6ntf3n3cgx1zr0000gn/T/pip-build-env-pjpe0jm7/overlay/lib/python3.8/site-packages/setuptools/build_meta.py", line 341, in run_setup
      exec(code, locals())
    File "<string>", line 154, in <module>
    File "<string>", line 48, in get_config_posix
    File "<string>", line 27, in find_package_name
  Exception: Can not find valid pkg-config name.
  Specify MYSQLCLIENT_CFLAGS and MYSQLCLIENT_LDFLAGS env vars manually
  ----------------------------------------
WARNING: Discarding https://pypi.tuna.tsinghua.edu.cn/packages/de/9c/b176826e8994551ce826404dab97e305a4bb76c8b0a4e016fabda2901c71/mysqlclient-2.2.0.tar.gz#sha256=04368445f9c487d8abb7a878e3d23e923e6072c04a6c320f9e0dc8a82efba14e (from https://pypi.tuna.tsinghua.edu.cn/simple/mysqlclient/) (requires-python:>=3.8). Command errored out with exit status 1: /Users/gaoxianghu/PycharmProjects/aliyunpanCrawler/venv/bin/python /Users/gaoxianghu/PycharmProjects/aliyunpanCrawler/venv/lib/python3.8/site-packages/pip/_vendor/pep517/in_process/_in_process.py get_requires_for_build_wheel /var/folders/3k/wmyqxb017sg6ntf3n3cgx1zr0000gn/T/tmpjs1tjc79 Check the logs for full command output.
  Using cached mysqlclient-2.1.1-cp38-cp38-macosx_10_9_x86_64.whl
Installing collected packages: mysqlclient

这时用brew install mysql-client，然后brew info mysql-client，有提示

==> mysql-client: stable 8.1.0 (bottled) [keg-only]
Open source relational database management system
https://dev.mysql.com/doc/refman/8.0/en/
/usr/local/Cellar/mysql-client/8.1.0 (128 files, 149.6MB)
  Poured from bottle using the formulae.brew.sh API on 2023-09-03 at 05:14:19
From: https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/homebrew-core.git/Formula/m/mysql-client.rb
License: GPL-2.0-only with Universal-FOSS-exception-1.0
==> Dependencies
Build: bison ✘, cmake ✘, pkg-config ✔
Required: libevent ✔, libfido2 ✔, openssl@3 ✔, zlib ✔, zstd ✔
==> Caveats
mysql-client is keg-only, which means it was not symlinked into /usr/local,
because it conflicts with mysql (which contains client libraries).

If you need to have mysql-client first in your PATH, run:
  echo 'export PATH="/usr/local/opt/mysql-client/bin:$PATH"' >> ~/.zshrc

For compilers to find mysql-client you may need to set:
  export LDFLAGS="-L/usr/local/opt/mysql-client/lib"
  export CPPFLAGS="-I/usr/local/opt/mysql-client/include"

For pkg-config to find mysql-client you may need to set:
  export PKG_CONFIG_PATH="/usr/local/opt/mysql-client/lib/pkgconfig"

按照提示，运行  export PKG_CONFIG_PATH="/usr/local/opt/mysql-client/lib/pkgconfig" 再 pip install mysqlclient就没问题了