Type python3 in your terminal, if you see similar warning as the pic shown below, it means you will need to install Python 3 (see the steps below for installation). Type exit() to exit from the Python 2.7 environment Type in python, if you see similar thing as the pic shown below, it means python 2.7 was installed on your Mac Open a terminal (in your launchpad, type in terminal, and then click and open it.) To test whether your Mac has Python 2.x or 3.x, look at the instructions below. Step 1: Check whether Python is installed on your Mac See below for example.įollow the steps below for detailed instructions. Open a terminal on your mac and type in Python and Python3 to see whether Python and Python3 installed on your mac. Most probably your Mac has already come with Python installed (see step 1 and step 2 below to check whether Python and Python 3 is installed on your mac, because my Mac book air has both Python and Python3.6 installed, I will go ahead to step 3 to install virtualenv). We can see that Python 2 is available by default and Python 3 is not installed on macOS Catalina as shown in Fig 1.This page provides the instructions for how to install and run IPython and Jupyter Notebook in a virtualenv on Mac. In this step, we will check the existing Python that ships by default with macOS Catalina using the commands as shown below.

We can use the command python to check the Python version which is specifically used for Python 2. The default installation of macOS Catalina ships with Python 2 by default. You might also be interested in Python Cheatsheet to learn or brush up on the basics of Python. The steps should be the same for other distributions of macOS including Sierra, High Sierra, and Mojave.

Python 3.9 on the popular macOS distribution Catalina. In this tutorial, we will discuss all the steps required to install Python 3 i.e. It soon entered into mainstream programming and majorly popular among data science engineers. Python has emerged as one of the major programming languages used to develop different types of applications including Web Applications, Desktop Applications, Numeric and Scientific Applications, etc.

Install python 2.7 mac