Evans Dianga

Machine Learning and Software Development

Installing Python 3 and Pip on Mac OS

May 11, 2017

Apple’s Mac OS comes with python 2.7 installed by default. Perhaps you may want to use python 3.x.x on your machine and also use pip for package management with python 3.x.x. The easiest way to achieve this is by:

NOTE: This tutorial does not use Virtual Environments like virtualenv or pyenv to manage various python versions

1. Installing python3

  • Follow this link and download the latest python3 OS X package
  • Run the package and follow the steps to install python3 on your computer.
  • Once the installation is done, on your Terminal, run
python3 --version

This will print out the version of python installed on your system. The output should be similar to:

Python 3.6.1

You may verify the installation directory of python by runningthe following line on the Terminal.

which python3

The prompt should print the install path for python3. An example output is:


2. Install pip3:

  • Securely download the get-pip.py file from this link
  • From the directory where the file was downloaded to, run the following command in the Terminal
 python3 get-pip.py
  • Once the installation completes you should see the prompt print message similar to this
  • Verify the installation of pip3 by running the following on the Terminal
which pip3

This should return the install location of pip3.

  • To install python3 packages using pip3, run
pip3 packageName

Remember to replace packageName with the appropriate package name for your case.

Happy Pythoning!

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