Importing MySQLdb (mysqlclient module) from Python throws an openssl-related error in Mac OS Catalina

Question

StackOverflow 中有类似的问题，但在 2020 年 2 月的 Mac OS Catalina 中，没有一个对我完全适用。我什至没有尝试涉及可能会支付的大量权限更改、链接或低级解决方法的问题未来。

Answer 1

I finally ended up with a similar but safer solution:

brew uninstall openssl

Homebrew will probably warn you about other packages that depend on it, specially mysql , and maybe python@3.8 or others. Don't force it , just uninstall all of them:

brew uninstall mysql
brew uninstall python@3.8
brew uninstall ...  # everything you have as dependencies
brew uninstall openssl

Now just reinstall mysql and openssl will be reinstalled too automatically, this time without errors:

brew install mysql

Now everything will work again:

python
import MySQLdb

Edit

In case it is still failing, take a look if it is the cache of pip the one keeping the problem:

brew info openssl  # to copy your LDFLAGS path of the lib
pip uninstall mysqlclient
LDFLAGS="-L/usr/local/opt/openssl@1.1/lib" pip install --no-cache-dir mysqlclient
python
import MySQLdb