ModuleNotFoundError: No module named 'mysql' in Python

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Borislav Hadzhiev

Wed Apr 20 20224 min read

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ModuleNotFoundError: No module named 'mysql' in Python #

The Python "ModuleNotFoundError: No module named 'mysql'" occurs when we forget to install the mysql-connector-python module before importing it or install it in an incorrect environment. To solve the error, install the module by running the pip install mysql-connector-python command.

no module named mysql

Open your terminal in your project's root directory and install the mysql-connector-python module.

shell
# ๐Ÿ‘‡๏ธ in a virtual environment or using Python 2 pip install mysql-connector-python # ๐Ÿ‘‡๏ธ for python 3 (could also be pip3.10 depending on your version) pip3 install mysql-connector-python # ๐Ÿ‘‡๏ธ if you get permissions error sudo pip3 install mysql-connector-python # ๐Ÿ‘‡๏ธ if you don't have pip in your PATH environment variable python -m pip install mysql-connector-python # ๐Ÿ‘‡๏ธ for python 3 (could also be pip3.10 depending on your version) python3 -m pip install mysql-connector-python # ๐Ÿ‘‡๏ธ for Anaconda conda install -c anaconda mysql-connector-python

After you install the mysql-connector-python package, try importing it like:

main.py
import mysql.connector # Connect to server cnx = mysql.connector.connect( host="127.0.0.1", port=3306, user="alice", password="dogsandcats123") # Get a cursor cur = cnx.cursor() # Execute a query cur.execute("SELECT CURDATE()") # Fetch one result row = cur.fetchone() print("Current date is: {0}".format(row[0])) # Close connection cnx.close()

The Python error "ModuleNotFoundError: No module named 'mysql'" occurs for multiple reasons:

  1. Not having the mysql-connector-python package installed by running pip install mysql-connector-python.
  2. Installing the package in a different Python version than the one you're using.
  3. Installing the package globally and not in your virtual environment.
  4. Your IDE running an incorrect version of Python.
  5. Naming your module mysql.py which would shadow the official module.
  6. Declaring a variable named mysql which would shadow the imported variable.

If the error persists, get your Python version and make sure you are installing the package using the correct Python version.

shell
python --version

get python version

For example, my Python version is 3.10.4, so I would install the mysql-connector-python package with pip3.10 install mysql-connector-python.

shell
pip3.10 install mysql-connector-python # ๐Ÿ‘‡๏ธ if you get permissions error use pip3 (NOT pip3.X) sudo pip3 install mysql-connector-python

Notice that the version number corresponds to the version of pip I'm using.

If the PATH for pip is not set up on your machine, replace pip with python3 -m pip:

shell
# ๐Ÿ‘‡๏ธ make sure to use your version of Python, e.g. 3.10 python3 -m pip install mysql-connector-python

If the "No module named 'mysql'" error persists, try restarting your IDE and development server / script.

You can check if you have the mysql-connector-python package installed by running the pip show mysql-connector-python command.

shell
# ๐Ÿ‘‡๏ธ check if you have mysql-connector-python installed pip3 show mysql-connector-python # ๐Ÿ‘‡๏ธ if you don't have pip setup in PATH python3 -m pip show mysql-connector-python

The pip show mysql-connector-python command will either state that the package is not installed or show a bunch of information about the package, including the location where the package is installed.

If the package is not installed, make sure your IDE is using the correct version of Python.

If you have multiple Python versions installed on your machine, you might have installed the mysql-connector-python package using the incorrect version or your IDE might be setup to use a different version.

For example, In VSCode, you can press CTRL + Shift + P or (โŒ˜ + Shift + P on Mac) to open the command palette.

Then type "Python select interpreter" in the field.

python select interpreter

Then select the correct python version from the drop down menu.

select correct python version

Your IDE should be using the same version of Python (including the virtual environment) that you are using to install packages from your terminal.

If you are using a virtual environment, make sure you are installing mysql-connector-python in your virtual environment and not globally.

You can try creating a virtual environment if you don't already have one.

shell
# ๐Ÿ‘‡๏ธ use correct version of Python when creating VENV python3 -m venv venv # ๐Ÿ‘‡๏ธ activate on Unix or MacOS source venv/bin/activate # ๐Ÿ‘‡๏ธ activate on Windows (cmd.exe) venv\Scripts\activate.bat # ๐Ÿ‘‡๏ธ activate on Windows (PowerShell) venv\Scripts\Activate.ps1 # ๐Ÿ‘‡๏ธ install mysql-connector-python in virtual environment pip install mysql-connector-python

Your virtual environment will use the version of Python that was used to create it.

If the error persists, make sure you haven't named a module in your project as mysql.py because that would shadow the original mysql-connector-python module.

You also shouldn't be declaring a variable named mysql-connector-python as that would also shadow the original module.

If the error is not resolved, try to uninstall the mysql-connector-python package and then install it.

shell
# ๐Ÿ‘‡๏ธ check if you have mysql-connector-python installed pip3 show mysql-connector-python # ๐Ÿ‘‡๏ธ if you don't have pip setup in PATH python3 -m pip show mysql-connector-python # ๐Ÿ‘‡๏ธ uninstall mysql-connector-python pip3 uninstall mysql-connector-python # ๐Ÿ‘‡๏ธ if you don't have pip setup in PATH python3 -m pip uninstall mysql-connector-python # ๐Ÿ‘‡๏ธ install mysql-connector-python pip3 install mysql-connector-python # ๐Ÿ‘‡๏ธ if you don't have pip setup in PATH python3 -m pip install mysql-connector-python

Try restarting your IDE and development server / script.

You can also try to upgrade the version of the mysql-connector-python package.

shell
pip3 install mysql-connector-python --upgrade # ๐Ÿ‘‡๏ธ if you don't have pip setup in PATH python3 -m pip install mysql-connector-python --upgrade
If the error persists, I would suggest watching a quick video on how to use Virtual environments in Python.

This one is for using using virtual environments (VENV) on Windows:

This one is for using using virtual environments (VENV) on MacOS and Linux:

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Copyright ยฉ 2022 Borislav Hadzhiev