Authentication plugin ‘caching_sha2_password’ is not supported

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 BY 'password' PASSWORD EXPIRE NEVER;
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '{NewPassword}';

check your settings using this

select Host,User,plugin from mysql.user;

Modify Mysql encryption

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

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',

)

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

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

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.

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:

[mysqld]
#add the following file to your MySQLd file
    default_authentication_plugin=mysql_native_password

Please install below command using command prompt.

pip install mysql-connector-python

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

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')

This seems to be a problem with the mysql-connector package. Uninstall and install the mysql-connector-python package instead.

sudo pip uninstall mysql-connector
sudo pip install mysql-connector-python

Alternatively, you could use the mysql-connector package with auth_plugin variable shown the following python code

mysql.connector.connect(host="localhost",port="3306",user="user",password='pass',database="dbname",auth_plugin='myql_native_password')

I think in either case, you also need to setup your SQL database user with the mysql_native_password

alter user 'user'@'localhost' identified with mysql_native_password by 'password';

I realized that I install mysql-connector instead of mysql-connector-python so run these commands in the terminal

pip3 uninstall mysql-connector
pip3 install mysql-connector-python

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

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

thanks.

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

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.

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

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.

This did the trick for me:

pip install cryptography