Introduction In this tutorial, How to solve problem python not found on Ubuntu .  Python, a widely-used programming language, serves as the backbone for numerous applications and scripts across various domains. Ubuntu, a popular Linux distribution, usually comes pre-installed with Python.  However, there might be instances where the system fails to recognize the Python installation, leading to the dreaded "Python not found" error. This article explores the common reasons behind this issue and provides step-by-step solutions to fix it on an Ubuntu system. I run a python program in the Linux terminal as below: python script.sh Use python command in Ubuntu or some other distributions will throw an error as below: vagrant@controller:~$ python Command 'python' not found, did you mean:   command 'python3' from deb python3   command 'python' from deb python-is-python3   The python command is actually python3 here. Because the Python package is not installed a