Python is dynamic scriptin language which provides rich features. Python have two main version named Python version 2 and version 3. We can call them simply Python2 or Python3 . In this tutorial we will learn how yo check Python version or a script version.

Default Python Version

Every Python installation have a default version even there is two version of Python. If we can python command and enter to the check version.

$ python

We can see from first line which is like Python 2.7.15rc1 which is simply Python2. We also get the gcc version which compiled this Python binary.

python_version() Function

Another function to check python version is python_version() function. But first we need to import platform module like below.

import platform  
platform.python_version()

version Variable

We can also use version variable which is provided by sys module.

import sys    
sys.version

Python –version Option

Every Python interpreter supports the --version option in the command like below bash. We can call this option like below in order to learn default Python version.

$ python --version

OR to learn Python3 subversion

$ python3 --version

OR to learn Python2 subversion

$ python2 --version

Listing Python Interpreters

As Python 2 and 3 version there are different interpreters which provides Python programming language features. We can list these interpreters as files like below. We will use following ls command.

$ ls /usr/bin/python*