在虚拟环境中安装 mysqlclient 发生报错：

pipenv install mysqlclient

报错如下：

ERROR:pip.subprocessor:Getting requirements to build wheel exited with 1
[ResolutionFailure]:   File "/Users/zhangyongxin/.local/share/virtualenvs/movie-calendar-djapi-VxNe5-yZ/lib/python3.12/site-packages/pipenv/resolver.py", line 645, in _main
[ResolutionFailure]:       resolve_packages(
[ResolutionFailure]:   File "/Users/zhangyongxin/.local/share/virtualenvs/movie-calendar-djapi-VxNe5-yZ/lib/python3.12/site-packages/pipenv/resolver.py", line 612, in resolve_packages
[ResolutionFailure]:       results, resolver = resolve(
[ResolutionFailure]:       ^^^^^^^^
[ResolutionFailure]:   File "/Users/zhangyongxin/.local/share/virtualenvs/movie-calendar-djapi-VxNe5-yZ/lib/python3.12/site-packages/pipenv/resolver.py", line 592, in resolve
[ResolutionFailure]:       return resolve_deps(
[ResolutionFailure]:       ^^^^^^^^^^^^^
[ResolutionFailure]:   File "/Users/zhangyongxin/.local/share/virtualenvs/movie-calendar-djapi-VxNe5-yZ/lib/python3.12/site-packages/pipenv/utils/resolver.py", line 918, in resolve_deps
[ResolutionFailure]:       results, hashes, internal_resolver = actually_resolve_deps(
[ResolutionFailure]:       ^^^^^^^^^^^^^^^^^^^^^^
[ResolutionFailure]:   File "/Users/zhangyongxin/.local/share/virtualenvs/movie-calendar-djapi-VxNe5-yZ/lib/python3.12/site-packages/pipenv/utils/resolver.py", line 691, in actually_resolve_deps
[ResolutionFailure]:       resolver.resolve()
[ResolutionFailure]:   File "/Users/zhangyongxin/.local/share/virtualenvs/movie-calendar-djapi-VxNe5-yZ/lib/python3.12/site-packages/pipenv/utils/resolver.py", line 448, in resolve
[ResolutionFailure]:       raise ResolutionFailure(message=str(e))
[pipenv.exceptions.ResolutionFailure]: Warning: Your dependencies could not be resolved. You likely have a mismatch in your sub-dependencies.You can use $ pipenv run pip install <requirement_name> to bypass this mechanism, then run $ pipenv graph to inspect the versions actually installed in the virtualenv.Hint: try $ pipenv lock --pre if it is a pre-release dependency.
ERROR: Getting requirements to build wheel exited with 1

解决办法如下：

$ # Assume you are activating Python 3 venv
$ brew install mysql pkg-config
$ pip install mysqlclient

如果不想安装 mysql server，只安装 mysql-client 也是可以的：

$ # Assume you are activating Python 3 venv
$ brew install mysql-client pkg-config
$ export PKG_CONFIG_PATH="$(brew --prefix)/opt/mysql-client/lib/pkgconfig"
$ pip install mysqlclient

最后附上 pypi 的 官方地址，有问题直接查官方文档，是最快，也是最靠谱的。