Your out-of-the-box Ubuntu system likely already has an installation of Python on it. For versions older than Ubuntu 14.10, the default version of Python is 2.7.x. In this article, I will explain how to install Python 3 and how to make this version your default.
- Running Ubuntu OS
First, let us check to see which version of Python is installed on the OS.
python -V Python 2.7.8
See that the version of Python installed is 2.7.8.
What we will do now is install Python 3 and then set that version to the default version to use.
sudo apt-get update sudo apt-get install python3.7
Now that Python 3 is installed let’s change the default version.
For the sake of this article I will be using vi as my text editor, but feel free to use whichever editor you prefer
sudo vi ~/.bashrc
Find the following line and modify it to reflect the version of Python that needs to be the default.
Next, source or re-load bashrc.
Check to see which version of Python is the default.
python -V Python 3.7.4
Great! You now have Python 3 set as the default.