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Download Python 3 Mac

Being a software engineer, you often come across many instances where you would require to have Python installed on your Mac.

However, the issue is most modern macOS versions come with rather with Python 2.7.x installed and not the newer, modern version like Python 3.6.5 or Python 3.7.2 (which is the most up-to-date version right now).

Installing Tweepy for Python 3 on Mac. Ask Question Asked 1 year, 9 months ago. Active 1 year, 9 months ago. Viewed 584 times -2. I have posted this question before and it seems like no one is able to guide me. I want to run tweepy on Python 3. Why won't it download properly on Python 3?

This short guide is written to show you how to properly install Python 3 on a Mac OS Xcomputer.

Python-3.7.3.exe Python is a dynamic object-oriented programming language that can be used for many kinds of software development. It offers strong support for integration with other languages and tools, comes with extensive standard libraries, and can be learned in a few days. The same source code archive can also be used to build the Windows and Mac versions, and is the starting point for ports to all other platforms. Download the latest Python 3 and Python 2 source. Gpg -verify Python-3.6.2.tgz.asc.

Before you jump into the guide, do take note that there are multiple ways to install Python 3 on a Mac but with this guide, I’ll show you the two easiest ways to do this, step-by-step.

Personally, the way I did it was using a package manager like HomeBrew (it’s okay if you don’t understand what it is). Again, I’ll show you how to do this method down below.

Wait, how do I check if Python 3 is already installed on my Mac?

Simple. Open up your Terminal and type the following line python --version and then hit your Enter key:

You should see the python version that is currently installed on your Mac.

How to Install Python 3 on macOS: 2 Ways

1. The Simplest Way.

Perhaps the simplest way to install Python 3 on macOS.

This is for you especially if you’re a newbie (though I still strongly recommend you try the HomeBrew method below) or if you don’t want to deal with copy-pasting code into your Terminal and downloading other software.

Python Update Mac

Here’s how to install Python 3 on your macOS:

  1. Jump into Python.org downloads page and simply just download the latest Python version.
  1. Next, run the Python Installer to install Python 3 onto your Mac.

Note

The Python installation may require about 100MB of disk space to install. Once you’ve installed Python 3 you can have it alongside Python 2 without having to delete the latter from your Mac.

  1. Great! Now once Python 3 is installed, you’ll be able to find it within the Applications directory of your Mac. You’ll also find here a simple IDE called “IDLE.app” which gives you a basic Python IDE.
Help! Where do I find the Applications directory?

If you can’t find the Applications directory, simply go to Finder by clicking the Finder icon in the Dock (it’s usually the first icon from the left side of the Dock). From there simply, go to the Go menu and select Applications.

Done. If you got yourself lost through the process, you can comment down below.

Next up, I’ll show you how you can install Python 3 using HomeBrew onto your macOS. This is my preferred way and it is just as simple as the method before but it will make your life a whole lot simpler, in the long run, using Python.

2. Install Python 3 on Mac using HomeBrew.

This method is dead-ass simple and a little fun. 🙂

First of all, you’ll need to have this thing called HomeBrew installed on your Mac. Homebrew is basically a “package manager”. A package manager is an application that helps you install the stuff you need that Apple (or even your Linux System) hadn’t installed in the first place for you.

It’s simple, fast and safe.

Second, you will need to have installed XCode onto your Mac. If you’re thinking of learning how to program or creating iOS apps on your Mac, then it’s good to have XCode installed. We will be using XCode to install HomeBrew application.

Note

If you have already installed XCode onto your Mac you can skip step 1 and jump straight to step 3.

Here are the steps to install XCode, HomeBrew as well as install Python 3 using HomeBrew onto your Mac:

  1. Jump into your Terminal app on your Mac and run the copy/paste the following command into the Terminal to install XCode onto your Mac:
  2. Simply click through all the confirmation crap that XCode shows. It may take a little while to install XCode since it is a large program.
  3. Great! Now that you have XCode installed, you can install HomeBrew! To install HomeBrew, simply copy/paste the following command into your Terminal:

Note

You can confirm the HomeBrew installed correctly by running the command: below:

  1. You’ve installed HomeBrew! Now let’s install the Python 3, the reason why you’re here. To install the latest version of Python, just copy/paste the following command into your Terminal:

Download Python 3.4 64 Bit

Note

You can confirm which version of Python was installed all by running the command below (the exact same command you tried earlier in this guide). It should show up as follows:

  1. Finally, let’s run our new Python 3. Simply enter python3.

Voila! You have now installed Python 3 successfully if you see something similar in your Terminal:

Bonus

•If you want to exit, type exit() and then hit your Return button on your keyboard. You can also hit both Control and D keys at the same time instead of the Return key.

•Remember I mentioned you can run both your new Python 3 alongside your old Python 2? Yup. Simply type python into the Terminal to run with Python 2.

Share this guide with someone who’s looking to install Python 3 on macOS.

Note: This article has been updated. Here's the new, updated article from Aug 10, 2017. 'How to Upgrade Your Mac to Python 3 [2017 Update].'

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For those who are learning Python on a Mac, it may be slightly frustrating that Apple doesn't provide the latest version, typically used when learning Python these days. Here's a short and sweet Q&A session on what you need to know to download and install the latest version of Python (3.4.1).

1. Why is Apple only providing Python 2.x?

As the Python website says, 'Python 2.x is legacy, Python 3.x is the present and future of the language.' Briefly, in order to move forward technically as a language, the creator, Guido van Rossum, needed to make some significant internal changes. To do this, backwards compatibility had to be compromised. As a result, the 3.x version can't be depended on to run 2.x scripts.

There are large libraries for Python 2.x and many users still need to use it, so Python 2.7.x is installed in OS X by default. Even OS X 10.10 Yosemite provides Python 2.7.x. So when should you use version 2 and when should you use the latest release, 3.4? The Python.org site says:

Firstly, if you're deploying to an environment you don't control, that may impose a specific version, rather than allowing you a free selection from the available versions.

Secondly, if you want to use a specific third party package or utility that doesn't yet have a released version that is compatible with Python 3, and porting that package is a non-trivial task, you may choose to use Python 2 in order to retain access to that package.

Alternatively, if you're a newbie to the language and/or your class instructor insists that you begin by learning 3.x, then you'll need to install it on your Mac. It's particularly easy to do because 1) There's an OS X installer package that does all the work and 2) You can still run both versions, so there's no penalty to installing 3.x.

2. Where can I get Python 3.x?

Go to the Python website's download page. It should auto-detect that you're on a Mac and offer you some options. You're probably wanting 3.4.1. The interesting part of the page will look something like this:

AnyBurn will start converting the DMG file to ISO format, and showingthe conversion progress.4. After youhave made the selection,click 'Convert Now' to start conversion.3. You should see themessage 'Converting image file finished successfully.' The destination ISO file will be in thesame folder of the source DMG file, you can change it if necessary. Convert dmg file to iso.

Install Python 3.7 Mac

python-3.4.1-macosx10.6.dmg' to your downloads folder. (The 10.6 notation means you need at least OS X Snow Leopard to run it.) When you double-click it, it will mount on your desktop as a volume. Open the DMG, and you'll see this:

It's important that you read the file 'ReadMe.txt'. There, you'll discover, along with other things, that you may not be able to just double-click the installer, 'Python.mpkg' because it's not signed by Apple. (Whether you can double-click it will depend on how you have your Gatekeeper settings set in System Preferences > Security & Privacy > General.) If you try it, you may see this. Ignore it and move on. to step #3.

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3. How do I install Python 3 and where does it get installed?

If you're using the OS X default setting for Gatekeeper, you'll need to right-click the installer package and select:

Like this:

Unlike Apple's default install of 2.x, the version 3.x that you're installing goes into your own library folder. Using the symbol ~ as a shorthand for /Users/<your acct name>, then we can write the location as:

4. How do I run Python 3?

The installer added the path for the above to your default path in .bash_profile so that when you type:

on the command line, the system can find it. You'll know you've been successful if you see the Python interpreter launch.

Exit the interpreter with CTRL-D.

5. How do I run the older 2.x versions?

If you look at:

you'll see that several older 2.x versions are already installed. To get to the latest 2.x version, and that shouldn't change because 2.x isn't being updated anymore, you can, on the command line, type:

Alternatively, you can enter the commands python2.5 or python2.6 to get to those older versions if needed.

6. Where can I learn more?

There is a boatload of friendly information about Python at their website. It's beautifully laid out.

1. Absolute beginner with no experience programming a computer. 'Python Programming' by Michael Dawson.

2. For those who know a little programming. 'Python Programming' by John Zelle.

3. For experienced programmers who want to learn Python. 'Learning Python' by Mark Lutz. This book (5th edition) covers both 2.x and 3.x.