This fork is to solve the MySQL connections.py line 573 SQL query error. We faced this bug when using langgraph and specifically langgraph-checkpoint-mysql that has "start:something" as its value, thus the ":" crashes the original SQL call.

The following is the original repo README.

This package contains a pure-Python MySQL and MariaDB client library, based on PEP 249.

• Python -- one of the following:
  • CPython : 3.7 and newer
  • PyPy : Latest 3.x version
• MySQL Server -- one of the following:
  • MySQL >= 5.7
  • MariaDB >= 10.4

Package is uploaded on PyPI.

You can install it with pip:

$ python3 -m pip install PyMySQL 

To use "sha256_password" or "caching_sha2_password" for authenticate, you need to install additional dependency:

$ python3 -m pip install PyMySQL[rsa] 

To use MariaDB's "ed25519" authentication method, you need to install additional dependency:

$ python3 -m pip install PyMySQL[ed25519] 

Documentation is available online: https://pymysql.readthedocs.io/

For support, please refer to the StackOverflow.

The following examples make use of a simple table

CREATETABLE `users` ( `id`int(11) NOT NULL AUTO_INCREMENT, `email`varchar(255) COLLATE utf8_bin NOT NULL, `password`varchar(255) COLLATE utf8_bin NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin AUTO_INCREMENT=1 ;

importpymysql.cursors# Connect to the databaseconnection=pymysql.connect(host='localhost', user='user', password='passwd', database='db', cursorclass=pymysql.cursors.DictCursor) withconnection: withconnection.cursor() ascursor: # Create a new recordsql="INSERT INTO `users` (`email`, `password`) VALUES (%s, %s)"cursor.execute(sql, ('webmaster@python.org', 'very-secret')) # connection is not autocommit by default. So you must commit to save# your changes.connection.commit() withconnection.cursor() ascursor: # Read a single recordsql="SELECT `id`, `password` FROM `users` WHERE `email`=%s"cursor.execute(sql, ('webmaster@python.org',)) result=cursor.fetchone() print(result)

This example will print:

{'password': 'very-secret', 'id': 1}

• DB-API 2.0: https://www.python.org/dev/peps/pep-0249/
• MySQL Reference Manuals: https://dev.mysql.com/doc/
• Getting Help With MariaDB https://mariadb.com/kb/en/getting-help-with-mariadb/
• MySQL client/server protocol: https://dev.mysql.com/doc/internals/en/client-server-protocol.html
• "Connector" channel in MySQL Community Slack: https://lefred.be/mysql-community-on-slack/
• PyMySQL mailing list: https://groups.google.com/forum/#!forum/pymysql-users

PyMySQL is released under the MIT License. See LICENSE for more information.