Normally, you would need to change the /usr/bin/python symbolic link, but Ubuntu has made it even easier for us through the python-is-python2 and python-is-python3 packages. If you have Python 2 and Python 3 installed on Ubuntu simultaneously, you can switch between which default version the system uses. Switch Between Python 2 and Python 3 on Ubuntu To use Python 2 as your default Python version, you can install the python-is-python2 package. You can verify successful installation with this command: $ python2 -version Execute the following commands to install it, along with its required dependencies. Python 2 is available for installation from Ubuntu’s package repositories. Note that it’s possible to install Python 2 along with Python 3 on Ubuntu. It’s no longer supported, but you may find a need to install Python 2 on Ubuntu for legacy Python scripts. The last release of Python 2 was version 2.7. To allow use of the python command, in place of the python3 command, you can also install the python-is-python3 package.
For Python developers, pip is an essential tool. On Ubuntu, pip allows for easy installation of Python programs and dependencies. There’s a good chance that you’ll also want to install pip. You can verify successful installation with this command: $ python3 -version This command will also update Python to the latest version. Python 3 is available for installation from Ubuntu’s package repositories. If it’s not installed, follow the steps below to install Python 3 on Ubuntu: It may already be installed on your system by default. Python 3 is the latest version of the language. This tutorial will show you how to install Python 2 or Python 3 on Ubuntu 20.04. Python programmers will need to install Python on the system before it’s possible to code programs and run Python scripts on Ubuntu.
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