Which version of Python do I have installed?

If you're wondering which version of Python is installed on your computer, there are some easy ways to check it, whether you're on Windows, macOS, or Linux. Knowing your Python version is important, especially when you’re installing packages or troubleshooting compatibility issues.

Here are some quick methods:

Using the Command Line (Works on all OS)

 Open your terminal or command prompt and type:

  python --version

 or

  python3 --version

 This will display the installed Python version, like Python 3.10.5.

Using Python Shell (REPL)

 You can also enter the Python shell by typing:

  python

 Once inside, check the version with:

import sys  

print(sys.version)

On Windows

 If Python is added to your PATH, open Command Prompt and run:

  py --version

On macOS/Linux

 Use:

  python3 --version

• If none of these work, it might mean Python isn’t properly installed, or it’s not added to your PATH. In that case, you may need to reinstall it.
  
• Checking your Python version is crucial because Python 2 and Python 3 have significant differences, and many packages require specific versions to work correctly!