Python 3 For Mac Os X



The 2020 CX Report gathers trends on how business happens in the computational era by examining the tech stacks for marketing and products in the context of digital transformation.

Ned Deily (macOS binaries, 3.7.x / 3.6.x source files and tags) (key ids: 2D34 7EA6 AA65 421D, FB99 2128 6F5E 1540, and Apple Developer ID DJ3H93M7VJ) Larry Hastings (3.5.x source files and tags) (key id: 3A5C A953 F73C 700D).

For the life of me I’ve installed competing Python environments too many times so I want to get this down in one place so I can come back to it when I inevitably need do this config again.

Python 3 For Mac Os X 10.8

Assuming you’re in a year sometime in the future when Python 2 is still installed by default on OS X, you’ll want to get Python 3 up and running. Even though you might be, like me, tethered to Python 2.7 for some odd reason. If you want to run both versions, and you want to remember how to run in protected, virtual environments but you keep forgetting how to do it — this is the guide for you.

Instructor The Mac operating systemcomes pre-installed with Python.However, the default Mac Python installation may not includethe correct version of Tcl/Tk to use Tkinter.Also, the Mac OS typically includes Python 2,whereas this course is oriented around using Python 3.In this video, I'll walk you through the entireinstallation process for Python 3 and Tcl/Tk on Mac. Have Homebrew manage Python 3. The Homebrew project provides a free and open source package manager for macOS that many people rely on. It gives Apple users a power similar to apt-get or yum. If you are a Homebrew user, you may already have Python installed. Python install on MAC OS X. For MAC you can download Python 3.x from here. After downloading, double click it. You can see an installer popped up. Just follow the instructions and click on Next buttons and it will install Python on your Mac. Below is the success screen. Python 2 is bundled with Mac OS X. However, Python 3 is not. We recommend that you download and install Python 3, and use Python 3 exclusively when running programs associated with this booksite. Perform these steps to download and install Python, IDLE, Tkinter, NumPy, and PyGame.

The basis for all these instructions are from the Python master at Guide to Python three posts: 123. I am but a mere Python mortal so if anything I typed below is bad, go to the source posts for the real truth.

0/ You may need to install Xcode command line tools to start

Python 3 For Mac Os X 10 13 Download

1/ Install Homebrew

2/ Add it to your path by tacking this to the bottom of your ~/.login

3/ To ingest that new command, type ‘source ~/.login’

4/ Now install Python 3 as both python3 and python (it will become your default)

5/ Test out that your Python 3 has been installed by asking what its version is

Sign up for the CX Briefing with no more than 2020 characters, zero images, and all in plain-text.

Success! You're on the list.
Whoops! There was an error and we couldn't process your subscription. Please reload the page and try again.

6/ Panic a little when you realize that Python 2.7 isn’t running on your system, but then recover quickly by re-installing Python 2

7/ Get a little happy when you realize it’s really there

8/ Tack a new path on to your default path in your ~/.login file and source it after you’ve saved the file

9/ Take note there’s two pips now that correspond to the two pythons running and note you’ll get different stuff back probably when you type ‘-V’s

Python 3 For Mac Os X

10/ Let’s set up virtual environments so you don’t have to sudo anymore. You’ll first need to do something a bit contorted because virtualenv comes pre-installed with Python 3

11/ Take the results of the user-base directory command and add a /bin to the end. Then add it to your ~/.profile and source it

12/ You now have pipenv and virtualenv ready to go from your command line. The command pipenv makes you feel a bit like running npm and manages your dependencies from the Requests library. If it’s not there, do this beforehand “pip install –user pipenv”

13/ This is an unlucky numbered step but still a beautiful one if it’s there, and if it’s not do this beforehand: “pip install virtualenv”

Or you might take Ryan Herr’s advice instead

Running Python 3

To get your environment setup

Then to activate the environment

Mac Os X Versions

And when you run python it’ll all be in that environment! When you’re done

If you ever want to get rid of the virtualenv, just delete the special directory it creates

To install a library to be used locally to your machine and to avoid a sudo

Running Python 2

To get your environment setup, only one step is different with the rest all exactly the same

Then to activate the environment

And when you run python it’ll all be in that environment! When you’re done

If you ever want to get rid of the virtualenv, just delete the special directory it creates

To install a library to be used locally to your machine and to avoid a sudo (note the pip2)

Go to: Na-Rae Han's home page

Os X Python 3

Python 3 Notes

[ HOME | LING 1330/2330 ]

Installing Python 3 on a Mac

<< Previous Note Next Note >>

Steps

  • Head to python.org. Click 'Downloads', then download the latest version from there:

    This downloads the 64-bit version of the latest Python release (3.8.5 as of August 2020).
    • Alternatively, if you start from the release page such as https://www.python.org/downloads/release/python-385/, you should scroll all the way to the bottom and choose 'macOS 64-bit installer', for OS X 10.9 and later. See screenshot here.
    • NOTE: If your Mac's OS version is older than 10.9 (year 2013), I recommend upgrading your OS first. If you are unable to, see this FAQ for how to install Python on an older version of Mac OS.
  • Proceed with installation. If everything goes fine, you should see an IDLE shortcut in your Launchpad.
  • Go ahead and try it out! Video tutorial here.

Should I Re-install?

If you already have a working version of Python on your laptop, you might be wondering if it is OK to keep it or you should re-install. The run-down:
  • Already have Python 3 but older version
    If you previously installed an earlier version of Python 3 (say, 3.3.1 or something), then you should either update it or simply un-install it and then install the newest version of Python 3. That way, you can make sure you are working in the exactly same setup with the rest of the class, which just might save you some headache stemming from a configuration unique to your machine.
  • I have Anaconda Python
    That works too! Make sure to update it to the latest 3.X version. There is one caveat: in LING 1330/2330, we will be using the interpretive shell interface via IDLE rather than Jupyter Notebook you probably have been using. This is how you launch IDLE for Anaconda Python:
    1. Open up a Terminal.
    2. Type in idle3 &, followed by ENTER. ('&' keeps Terminal usable while IDLE window is open.)