【其他】Mac安装mysql-python

默认版本MySQL方式遇到报错的参考汇总：https://blog.csdn.net/weixin_44649870/article/details/93780227

由于brew默认安装的mysql 8.0.19已经没有mysql_config，mysql-connector-c 8.0.20的include里也没有了my_config.h，所以安装pip install mysql-python还是绕不开找不到my_config的错

老方法会遇到的错误

# 没有安装mysql
EnvironmentError: mysql_config not found

# 没有安装mysql-connector-c
_mysql.c:44:10: fatal error: 'my_config.h' file not found

为了解决高版本没有mysql_config，那就把mysql降低版本，首先brew卸载已经安装的mysql

# ls /usr/local/Cellar/ 查看已经安装的mysql
mac > brew uninstall mysql mysql++ mysql-connector-c++

mac > brew install mysql@5.7 mysql-client@5.7
==> Pouring mysql@5.7-5.7.29.catalina.bottle.tar.gz
==> Caveats
...
If you need to have mysql@5.7 first in your PATH run:
  echo 'export PATH="/usr/local/opt/mysql@5.7/bin:$PATH"' >> ~/.zshrc

For compilers to find mysql@5.7 you may need to set:
  export LDFLAGS="-L/usr/local/opt/mysql@5.7/lib"
  export CPPFLAGS="-I/usr/local/opt/mysql@5.7/include"

...

==> Pouring mysql-client@5.7-5.7.29.catalina.bottle.tar.gz
==> Caveats
mysql-client@5.7 is keg-only, which means it was not symlinked into /usr/local,
because this is an alternate version of another formula.

If you need to have mysql-client@5.7 first in your PATH run:
  echo 'export PATH="/usr/local/opt/mysql-client@5.7/bin:$PATH"' >> ~/.zshrc

For compilers to find mysql-client@5.7 you may need to set:
  export LDFLAGS="-L/usr/local/opt/mysql-client@5.7/lib"
  export CPPFLAGS="-I/usr/local/opt/mysql-client@5.7/include"

安装完后执行

mac > echo 'export PATH="/usr/local/opt/mysql-client@5.7/bin:$PATH"' >> ~/.zshrc
mac > source ~/.zshrc

这时再安装mysql-python，遇到报错

mac > pip install mysql-python
　　...
    ld: warning: directory not found for option '-L/BuildRoot/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.Internal.sdk/usr/local/libressl/lib'
    ld: library not found for -lssl
    clang: error: linker command failed with exit code 1 (use -v to see invocation)
    error: command 'cc' failed with exit status 1

安装libressl

mac > brew install libressl
...
==> Pouring libressl-3.1.1.catalina.bottle.tar.gz
==> Caveats
...
If you need to have libressl first in your PATH run:
  echo 'export PATH="/usr/local/opt/libressl/bin:$PATH"' >> ~/.zshrc

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

添加到环境变量

mac > echo 'export PATH="/usr/local/opt/libressl/bin:$PATH"' >> ~/.zshrc
mac > export LDFLAGS="-L/usr/local/opt/libressl/lib"
mac > export CPPFLAGS="-I/usr/local/opt/libressl/include"
mac > source ~/.zshrc

再安装mysql-python成功

brew国内源

# 替换brew.git
cd "$(brew --repo)"
git remote set-url origin https://mirrors.aliyun.com/homebrew/brew.git
# 替换homebrew-core.git
cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core"
git remote set-url origin https://mirrors.aliyun.com/homebrew/homebrew-core.git
# 刷新源
brew update


# 替换brew.git
cd "$(brew --repo)"
git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/brew.git
# 替换homebrew-core.git
cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core"
git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/homebrew-core.git
# 刷新源
brew update