Authentication plugin ‘caching_sha2_password’ is not supported

I am trying to connect to a MySQL server with python connector. I created a new user lcherukuri with the authentication plugin mysql_native_password.

But I got the error

mysql.connector.errors.NotSupportedError: Authentication plugin ‘caching_sha2_password’ is not supported

Can someone help me?

import mysql.connector

cnx = mysql.connector.connect(user='lcherukuri', password='password',
                              host='127.0.0.1',
                              database='test')
cnx.close()

Answer

Per Caching SHA-2 Pluggable Authentication

In MySQL 8.0, caching_sha2_password is the default authentication plugin rather than mysql_native_password.

You’re using mysql_native_password, which is no longer the default. Assuming you’re using the correct connector for your version you need to specify the auth_plugin argument when instantiating your connection object

cnx = mysql.connector.connect(user='lcherukuri', password='password',
                              host='127.0.0.1', database='test',
                              auth_plugin='mysql_native_password')

From those same docs:

The connect() method supports an auth_plugin argument that can be used to force use of a particular plugin. For example, if the server is configured to use sha256_password by default and you want to connect to an account that authenticates using mysql_native_password, either connect using SSL or specify auth_plugin='mysql_native_password'.