4 Ways You Can Connect Python to MySQL
MySQL is one of the most popular relational databases. It allows you to store data in tables and create relationships between those tables. To use MySQL, which runs as a database server, you will need to write code to connect to it.
Most programming languages like Python provide support for this. In fact, in Python, there are several approaches you can take, each with its own advantages.
Prepare Your MySQL Configuration
To connect to the database, you need the following values:
Before connecting to the MySQL database, create a new directory:
Set Up a Python Virtual Environment
A Python virtual environment allows you to install packages and run scripts in an isolated environment. When youcreate a virtual environment, you could then install versions of Python and Python dependencies within it. This way, you isolate different versions and avoid compatibility issues.
Connect to MySQL Using mysqlclient
Themysqlclientdriver is an interface to the MySQL database server that provides the Python database server API. It is written in C.
Run the following command in the virtual environment to install mysqlclient:
If you are on a Linux machine, install the Python 3 and MySQL development headers and libraries first.
On Windows, you’re able to install mysqlclient using a binary wheel file. Download the mysqlclient file that’s compatible with your platform fromChristoph Gohlke’s unofficial collection. You can then use the downloaded wheel file with pip to install mysqlclient like this:
Use the following connection code to connect to the MySQL database once the installation is complete:
In this program, you have:
Remember to switch the database details with your own.
Connect to MySQL Using mysql-connector-python
mysql-connector-pythonis the official connection driver supported by Oracle. It is also written in pure Python.
Install it via pip to start using it.
Connect to MySQL using the following connection code.
The above connection code does the same thing that the mysqclient connection code does.
Once you create the connection object, you can create a cursor, which you can then use to execute queries on the database.
This connection program also uses thetry…catchblock. The Error class, frommysql.connector, lets you catch exceptions raised when connecting to the database. This should simplify debugging and troubleshooting.
Connect to MySQL Using PyMySQL
ThePyMySQLconnection driver is a replacement for MySQLdb. To use it, you need to be running Python 3.7 or newer and your MySQL server should be version 5. 7, or newer. If you use MariaDB it should be version 10.2 or higher. you may find these requirements on thePyMySQL Github page.
To install PyMySQL, run the following command.
Connect to MySQL using PyMySQL using this code.
Once you’ve made the connection, and created the cursor object, you can start makingSQL queries.
Connect to MySQL Using aiomysql
Theaiomysqlconnection driver is like the asynchronous version of PyMySQL. It provides access to a MySQL database from the asyncio framework.
To use aiomysql, you need Python 3.7+ and PyMySQL installed in your development environment.
Run the following command to install asyncio and aiomysql.
With aiomysql, you can connect Python to MySQL using a basic connection object and using a connection pool.
Here is an example showing how to connect to the MySQL database using a connection object.
Unlike a database connection object, a connection pool allows you to reuse database connections. It does this by maintaining a pool of open connections and assigning them upon request. When a client requests a connection, they are assigned one from the pool. Once the client closes the connection, the connection goes back to the pool.
The basic code for connecting through a pool is like below:
This program should print the version of MySQL you have connected to when you run it.
Managing Your PostgreSQL Database
This article showed you several ways it’s possible to connect a Python application to MySQL. Each of these methods allows you to interact with and execute queries on the database.
Once connected to a MySQL database, you can execute data queries and perform database transactions. You can create a Python application, hook it up to MySQL, and begin storing data.
Learn all the most important commands to start working with a MySQL database.
Quality apps that don’t cost anything.
Goodbye sending links via other apps.
Turn these settings on, and your iPhone will be so much better than before.
Some subscriptions are worth the recurring cost, but not these ones.
When your rival has to bail out your assistant.
