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Run Python 3 as default when Python 2 is installed on a Mac

David Carr

Tutorials Python

I’ve started to learn Python version 3 I had Python 2 already installed so when typing ‘python’ in terminal python 2 was being executed. To run 3 I had to type python3 while that works I would prefer to run 3 as default. This can be done by creating an alias.

First open your bash profile:

nano ~/.bash_profile

This will open the profile if it exists, otherwise it will create it.

Next create the alias so when ‘python’ is typed python3 will be executed:

alias python='python3'

Save the file by pressing ctrl + x and y to confirm the changes, you may need to restat terminal for the alias to be available.

This allows Python 3 to be ran by default without touching Python 2.

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