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How to check Python Version : Windows, Linux and Mac

Last Updated : 23 Jul, 2025

Python has multiple versions, and it's important to know which version is installed on your system. This information is crucial because different Python versions may have variations in syntax or libraries, and ensuring you're using the correct version is vital for compatibility with your projects. In this guide, we'll explore various straightforward methods on how to check the Python version on your Linux, Windows, and Mac systems.

To check the Python version on Windows or Mac system, we can follow these methods:

• Using the Command Prompt/Terminal
• Checking in the Interactive Shell

Open the Command Prompt for Windows by searching for "cmd" in the Windows Start menu or open Terminal for Mac by searching Terminal in the MacOS spotlight search.  Then, use one of the following commands:

For Python 2:

python --version
or
python -V

For Python 3:

python3 --version
or
python3 -V

We can also find the Python version in the interactive shell. Open the Command Prompt/terminal and enter one of the following commands:

For Python 2:

python

For Python 3:

python3

Once you are in the Python interactive shell, you can check the version with these Python commands:

import sys
print(sys.version)

We can use the following methods to check the Python version on Linux systems like Ubuntu, Debian, Arch, etc. These methods can be used to find Python version:

• Using the Command Line
• Checking in the Interactive Shell
• Using Package Managers
• Checking the Path

The command line provides a straightforward way to get the Python version. Open your terminal and use this simple check Python version command:

For Python 2:

python --version
or
python -V

For Python 3:

python3 --version
or
python -V

NOTE: These commands will display the Python version installed on your Linux system.

Python's interactive shell is another way to find Python version. Open your terminal and enter one of the following commands:

For Python 2:

python

For Python 3:

python3

Once you are in the Python interactive shell, you can get Python version with the following Python commands:

import sys
print(sys.version)

If you installed Python using a package manager, you can use these tools to check the Python version.

For Debian-based systems, such as Ubuntu, you can use `apt`:

apt show python3

For Red Hat-based systems, like CentOS, you can use yum:

yum info python3

NOTE: These commands will provide detailed information about the Python version installed on your system.

We can also determine the path to the Python interpreter and indirectly obtain information about the installed version using the `which` command:

which python3

This command will return the path to the Python interpreter. We can then use this path to check the version:

/path/to/python --version

Replace '/path/to/python' with the actual path obtained from the previous which command.

Also Read:

• Download and Install Python 3 Latest Version
• How to update Python on Windows?
• How to Download and Install Python Latest Version on Linux

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