[python] 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',

enter image description here

This question is related to python mysql

The answer is

I had the same problem and passing auth_plugin='mysql_native_password' did not work, because I accidentally installed mysql-connector instead of mysql-connector-python (via pip3). Just leaving this here in case it helps someone.

This question is already answered here and this solution works.

caching sha2 password is not supported mysql

Just try this command :

pip install mysql-connector-python

None of the above solution work for me. I tried and very frustrated until I watched the following video: https://www.youtube.com/watch?v=tGinfzlp0fE

pip uninstall mysql-connector work on some computer and it might not work for other computer.

I did the followings:

The mysql-connector causes problem.

  1. pip uninstall mysql-connector

    The following may not need but I removed both connector completely.

  2. pip uninstall mysql-connector-python

    re-install mysql-conenct-python connector.

  3. pip install mysql-connector-python

I also got a similar error

  File "C:\Users\User\AppData\Local\Programs\Python\Python37-32\lib\site-packages\mysql\connector\authentication.py", line 191, in get_auth_plugin
    "Authentication plugin '{0}' is not supported".format(plugin_name))
mysql.connector.errors.NotSupportedError: Authentication plugin 'caching_sha2_password' is not supported

You have probably installed mysql-connector instead of mysql-connector-python. So you need to install it again for python3:

pip3 install mysql-connector-python

I had this same issue but my resolution was different because this didn't completely work.

I found this on a GitHub forum - copy and paste this into your terminal. You don't have to change your password; it can be the exact same.

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '{NewPassword}';

Modify Mysql encryption

ALTER USER 'lcherukuri'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password';

To have a more permanent solution without going through your code and modifying whatever needs to be modified: Per MySQL 8 documentation, easiest way to fix this is to add the following to your MySQL d file -> restart MySQL server.

This worked for me!

If your MySQL installation must serve pre-8.0 clients and you encounter compatibility issues after upgrading to MySQL 8.0 or higher, the simplest way to address those issues and restore pre-8.0 compatibility is to reconfigure the server to revert to the previous default authentication plugin (mysql_native_password). For example, use these lines in the server option file:

#add the following file to your MySQLd file

You can go to Settings->Project->Project Interpreter and here install latest version of mysql-connector-python package. In my case it was mysql-connector-python 8.0.15.

Use pip install mysql-connector-python

Then connect like this:

import mysql.connector

mydb = mysql.connector.connect(
  host="localhost",               #hostname
  user="Harish",                   # the user who has privilege to the db
  passwd="Harish96",               #password for user
  database="Factdb",               #database name
    auth_plugin = 'mysql_native_password',


Please install below command using command prompt.

pip install mysql-connector-python

enter image description here

For those who couldn't work out because they installed mysql-connector first, I did the following:

1.First on CMD go to the path of 'pip'

2.Use 'pip list' command

3.There would be three packages installed namely six, protobuf and mysql-connector

4.Uninstall each of them separately

5.Now freshly install the mysql-connector-python module

This worked out for me

pip3 install mysql-connector-python did solve my problem as well. Ignore using mysql-connector module.

I was facing the same error for 2 days, then finally I found a solution. I checked for all the installed connectors using pip list and uninstalled all the connectors. In my case they were:

  1. mysql-connector
  2. mysql-connector-python
  3. mysql-connector-python-rf

Uninstalled them using pip uninstall mysql-connector and finally downloaded and installed the mysql-connector-python from MySQL official website and it works well.

  1. Install mysql connector using the below command.

    pip install mysql-connector-python-rf

  2. Use the command to set the privileges.

    ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'very_strong_password'; FLUSH PRIVILEGES;

  3. Use the python command to connect to mysql database

    mydb = mysql.connector.connect( host="localhost", user="root", passwd="very_strong_password", auth_plugin='mysql_native_password')

If you are looking for the solution of following error

ERROR: Could not install packages due to an EnvironmentError: [WinError 5] Acces s is denied: 'D:\softwares\spider\Lib\site-packages\libmysql.dll' Consider using the --user option or check the permissions.

The solution: You should add --user if you find an access-denied error.

 pip install --user mysql-connector-python

paste this command into cmd and solve your problem

pip install -U mysql-connector-python this worked for me, if you already have installed mysql-connector-python and then follow https://stackoverflow.com/a/50557297/6202853 this answer

i try to resolve this error and finally install PyMySQL instead of mysql library and it's working properly.


I ran into the same problem as well. My problem was, that I accidentally installed the wrong connector version. Delete your currently installed version from your file system (my path looks like this: C:\Program Files\Python36\Lib\site-packages) and then execute "pip install mysql-connector-python". This should solve your problem

Using MySql 8 I got the same error when connecting my code to the DB, using the pip install mysql-connector-python did solve this error.

I uninstalled mysql-connector (I installed following tutorial on w3schools tutorial) and installed mysql-connector-python instead. It worked.

I had an almost identical error:

Error while connecting to MySQL: Authentication plugin 'caching_sha2_password' is not supported

The solution for me was simple:

My db username/password creds were incorrect. The error was not descriptive of the problem, so I thought I would share this in case someone else runs into this.

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