This error usually occurs when MySQL server's authentication protocol is incompatible with the MySQL client. Common causes include the server using the `caching_sha2_password` plugin while the client relies on the older `mysql_native_password` plugin. Solutions include upgrading the MySQL client to a version supporting `caching_sha2_password`, or changing the user's authentication plugin to `mysql_native_password` using SQL commands.
This script installs Python versions 3.9.6 and 3.10.0 on CentOS 7 systems. It includes steps to update the system, install necessary development tools, download and configure OpenSSL, and then install Python with optimizations. The script also configures pip to use the Aliyun Python repository.