If you’ve been getting NameError: name ‘_mysql’ is not defined errors when trying to use MySQL in your Python programs, you may have wondered how to fix this. The problem is that the default MySQL connection string uses a module named _mysql, which is not defined in Python. Luckily for you, there are a few easy fixes.
What is MySql?
MySQL is a database that stores data for websites. It is a very important part of a website and without it, a website would not be able to function. It allows you to store data such as user information, passwords, and website content. MySQL is used by many web applications. For example WordPress, Drupal, and Joomla these sites use to store user information. Also, many large organizations, such as Facebook, Google, and Wikipedia use it that making it more popular.
Solutions for the NameError: name ‘_mysql’ i s not defined
There are various ways you can solve this NameErroe. Just follow the method to solve it.
Solution 1: Install Module
First, you can install the mysql module using pip:
pip install mysql
If that doesn’t work, you can try installing it from the source:
wget https://github.com/farcepest/MySQL-python/tarball/master -O MySQL-python.tar.gz tar -xvf MySQL-python.tar.gz cd farcepest-MySQL-python-* sudo python setup.py install
With the mysql module installed, you should be able to connect to your MySQL database without any problems.
Solutions 2: Connection String
If you’re still having trouble, make sure that your Python code is using the correct MySQL connection string. The default connection string for MySQL is:
But if you’ve changed the root password for MySQL, or if you’re connecting to a remote database, you’ll need to update the connection string accordingly.
Solution 3: Install Homebrew
If you’re on a Mac, you can also install MySQL using Homebrew:
brew install mysql
Once MySQL is installed, you can use it in your Python programs just like any other database.
Solution 4: Install libmysqlclient-dev
If you’re getting errors when trying to install the mysql module, it’s likely because you don’t have the libmysqlclient-dev library installed. To install it, just run:
sudo apt-get install libmysqlclient-dev
If you’re on a Mac, you can install it with Homebrew:
brew install mysql-connector-c
Once that’s installed, try pip install MySQL-python again. If it still doesn’t work, make sure you have the development headers for Python installed (usually python-dev or python3-dev).
If you’re on Windows, you can download a pre-built binary installer for mysql . Just make sure to choose the version that matches your Python installation (32-bit or 64-bit).
There are a few different ways to fix the NameError: name ‘_mysql’ is not defined error in Python. The easiest way is to install the mysql module using pip or from the source.
If that doesn’t work, you can try installing MySQL using Homebrew or a pre-built binary installer. Finally, make sure you have the libmysqlclient-dev library installed. With all of that in place, you should be able to connect to your MySQL database without any problems.