Macos – How to properly update Python on Mac OS X

macmacospythonupdates

If I download python from the Python website and try to install it with the installer, it installs, but I need to specify that I want the new version of Python when I run my programs from terminal. If I just type:

python app.py

It runs with the old version.

How do can I set the new version as default?

Best Answer

I finally found how to do it. The installer made a python 2.6 folder in /Application In this folder is a script called Update Shell Profile.command I just needed to execute it and now it's working.

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Install Python 2.5 on Windows 7 64-bit

amd64 is what you're after. AMD were the first to implement the 64-bit extension of the x86 instruction set, then others followed and created their own implementation. The name AMD64 was for marketing, and it sort of stuck. If you're looking for 64-bit software, it may be labeled as x64, 64-bit, x86-64, or amd64.

As per wikipedia:

The term x86-64 is the original naming of a 64-bit extension to the x86 instruction set specified by Advanced Micro Devices (AMD) and implemented by AMD, Intel, VIA, and others.

Python on Mac – How to Install and Use Python on macOS

Python 3 breaks things. That's why it doesn't replace Python 2, and python still launches 2.

To get Python 3, type python3. You might need to change your $PATH by editing ~/.bash_profile and adding:

PATH="/Library/Frameworks/Python.framework/Versions/3.1/bin:${PATH}"
export PATH

You could define a shell function or alias to map python to python3, this way old scripts would continue to run, and you can type python and get version 3.

Add to .bash_profile:

alias python='python3'

/usr/bin/env python continues to provide Python 2.

Best Answer

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Install Python 2.5 on Windows 7 64-bit

Python on Mac – How to Install and Use Python on macOS

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