Python upgrade mac os

How to Update Python on Mac?

Python is a popular programming language that is widely used by both beginners and professional developers. Modern versions of Mac OS support Python 2.7.x (or Python 2.6.1 in older versions), but many users need to upgrade to Python 3.6 or 3.7.

Today I will explain how to install the Python 3 update on a Mac in two different ways.

Note that I mean “install update” rather than “upgrade”, since Python 2 will remain on the Mac with this method. Some Mac programs require Python 2, and when upgrading they may start to malfunction or stop working altogether. Therefore, we will not update the installed version, but install Python 3 in parallel. Python 3 and Python 2 can coexist on the same Mac without conflicts, just the commands will differ slightly.

How to install Python 3 in macOS with Installer

The easiest way is to download the Python installer from the python.org website.

• Visit Python.org and download the latest available Python installer file;

• Run the downloaded file and install Python 3.x on Mac.
• Python 3.6.x requires about 100MB of available disk space. The installation process is very fast;
• When Python 3 is installed, you will see the Python3 folder in /Applications on your Mac. You will also see IDLE in the /Applications.

Next method will show you how to install Python 3.x on a Mac through Homebrew.

How to install Python 3 using Homebrew

Installing an updated version of Python 3 through Homebrew is extremely simple. Of course, Homebrew should be installed on your computer, however, if you are interested in this method, then you probably have already used the program more than once.

If you haven’t Homebrew in your system, you can take script for Homebrew installing here. This script installs Homebrew to /usr/local so that you don’t need “sudo” when you brew install. It is a careful script; it can be run even if you have stuff installed to /usr/local already. It tells you exactly what it will do before it does it too. You have to confirm everything it will do before it starts.

Now to install Python 3 via Homebrew, run the following command in Terminal:

When Python 3 is installed on a Mac, you can start the program with:

In any case, after installing Python 3 on a computer, the version of Python 2.7 will still remain on it, and you will be able to use it.

How to Find out the Installed Version of Python

Open the Terminal program and use the following command:

In most cases, Python 2.7.x will be installed on macOS: either 2.7.4 or 2.7.10.

If you installed the Python update, you can check the version with the following command:

Once again, both versions of Python can coexist without conflicts.

Note: Once again, I want to remind you that you do not need to upgrade Python 2.x to Python 3.x, because this can lead to program malfunctions. Just install the updated version in parallel.

It’s the best time to ask questions and give us your feedback in comments.

Hi there! My Name is Vincent Lago! My goal is to share insightful reviews, guides, and manuals for people looking to know more about current solutions for Apple hardware and OS. I have years of technological background knowledge including owning a custom iMacs & PCs which was using for different types of business. And now, I want to share my experience with you.

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How to Update Python Version? — [Upgrade Python Version]

Are you looking to update Python version to the latest python version? Then this blog post will guide you with how to upgrade Python version.

List of content you will read in this article:

Python is an open-source high-level programming language that allows users to execute commands and plugins on their machine and even software from several major suppliers. It means that you can operate it on many different operating systems, including the Windows VPS Server. Python is a cross-platform programing language.

Pip is one of the best applications for Python packages installation and administration. Pip’s popularity stems from the large number of apps that use this tool. Pip enables 3rd Party package installed to manage binary packages with the quickly configured package manager. Since Python’s latest releases have piping as normal, this guide will explain how to install PIP, how to update Python version with a complete step-by-step guide.

What is PIP?

PIP is a software management framework for installing and managing Python-written program packages. It is called the ‘preferred software installer’ or ‘Pip Installs Packages.’ PIP used for Python, is a command-line interface for handling PyPI program installation. You might need to upgrade PIP if you’re using an earlier version of Python on Windows. Download the application file, open the command- line and start the installer to run PIP on Windows quickly. It will teach you how PIP is installed on Windows, how it can be modified, upgraded, and set up.

How to update Python on Windows Operating System?

Go to the Python update page and download and install the Python 3.9 installer to update the python on your windows system. You’re still undecided about which version to have. It is recommended to use the Windows x86–64 executable installer.

Python Installer (Recommended) (Screenshot from the Python Download page)

Check the «Add Python to Path» option during installation to register Python3.9 as your system’s main Python.

How To Upgrade Python on macOS?

You can download the latest version of Python for macOS from the official Python website, similar as you did on windows OS to update Python version on your system. To check it is updated to the lasted version or not follow the below-listed commands to check Python version.

If you want to execute this new Python release with the python command instead of python3, install an alias in your $HOME directory’s bash profile file.

Open the terminal window and type the following commands:

Then, at the bottom, add this segment.

Python 3.9 version can be checked using the following command.

How to Update Python version on LINUX?

Users can use the below listed Linux commands to upgrade Python version to the latest released version:

ppa:deadsnakes/ppa can be added to the system’s Software Sources to upgrade the machine with unsupported packages from this untrusted PPA.

$ sudo add-apt-repository ppa:deadsnakes/ppa

This command is used to update Python package.

$ sudo apt update

$ sudo apt install python3.9

Then, using the commands below, you can search the versions of your new and current Python installations:

This command will show you the following version of python installed in your system

$ sudo python —version

$ sudo python3 —version

$ sudo python3.9 —version

Conclusion

We have seen how to update Python version on operating systems like Windows, Mac OS, and Linux. Follow the guide carefully to update your python software. we believe this guide fulfills your requirement though you can install the latest version successfully. Leave your comments below for your feedback and queries.

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Как установить обновлённую версию Python 3.6.x на Mac

Python – популярный язык программирования, который широко используется как новичками, так и профессиональными разработчиками. Современные версии Mac OS поддерживают Python 2.7.x (или Python 2.6.1 в более старых версиях), но многим пользователям нужно обновить версию до Python 3.6.5.

Сегодня мы расскажем, как установить обновление Python 3 на Mac двумя разными способами.

Учтите, что мы выбрали формулировку «установить обновление», а не «обновить», поскольку при этом способе на Mac останется и Python 2. Для некоторых программ Mac необходимо наличие Python 2, и при обновлении они могут начать работать неисправно или перестать работать вообще. Поэтому мы не будем обновлять установленную версию, а установим Python 3 параллельно.Python 3 и Python 2 могут сосуществовать на одном Mac без конфликтов, просто немного будут отличаться команды.

Как установить Python 3 в Mac OS

Проще всего скачать установщик Python с сайта python.org.

Python 3.6.x требует около 100Мб доступного места на диске. Процесс установки очень быстрый.

Когда Python 3 установится, вы увидите папку Python3 в /Applications на своём Mac. Вы также увидите IDLE в папке /Applications/MacPython3/.

Установить Python 3.x на Mac можно и через Homebrew.

Как установить Python 3.6.5 с помощью Homebrew

Устанавливать обновлённую версию Python 3.6.5 через HomeBrew предельно просто. Конечно же, на вашем компьютере должна быть установлена программа Homebrew, однако, если вас заинтересовал данный способ, то вы наверняка уже не раз использовали программу.

Чтобы установить Python 3 через Homebrew, запустите следующую команду:

Когда Python 3 установится на Mac, можно запустить программу с помощью:

При любом раскладе после установки Python 3 на компьютер версия Python 2.7 всё ещё останется на нём, и вы сможете ей пользоваться.

Как узнать установленную версию Python

Откройте программу Terminal и используйте следующую команду:

В большинстве случаев в MacOS будет установлена Python 2.7.x: либо 2.7.4, либо 2.7.10.

Если вы установили обновление Python, версию можно проверить с помощью такой команды:

Ещё раз напомним, что обе версии Python могут сосуществовать без конфликтов.

Вы также можете узнать, где установлена каждая из версий, с помощью команды:

Не забывайте, что работа в разных версиях немного отличается. Мы рекомендуем использовать версию Python 3.x, поскольку она удобнее.

Обучение работе в Python

Если вы не знакомы с программой Python и программированием в целом, есть множество отличных источников, которые помогут начать.

Можете изучить следующие пособия:

Также помогут онлайн-курсы:

Примечание: Ещё раз напоминаем, что не нужно обновлять Python 2.x до Python 3.x, ведь это может привести к неисправности программ. Просто установите обновлённую версию параллельно.

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How to Install Python 3 on Mac – Brew Install Update Tutorial

MacOS comes with Python pre-installed. But it’s Python Version 2.7, which is now deprecated (abandoned by the Python developer community).

The entire Python community has now moved on to using Python 3.x (the current version as of writing this is 3.9). And Python 4.x will be out soon, but it will be completely backward compatible.

If you try to run Python from your MacOS terminal, you’ll even see this warning:

WARNING: Python 2.7 is not recommended. This version is included in macOS for compatibility with legacy software. Future versions of macOS will not include Python 2.7. Instead, it is recommended that you transition to using ‘python3’ from within Terminal.

Until Apple decides to set Python 3.x, as the default you’re going to have to install it yourself.

A Single Command to Run Python 3

For some of you reading this, this command may be enough. You can run Python 3 using this command (with the 3 at the end).

If that’s all you came for, no worries. Have a fun day and happy coding.

But if you want a proper Python version control system to keep track of various versions – and have fine-grain control over which version you use – this tutorial will show you exactly how to accomplish this.

By the way, if you’re wondering why I keep referring to Python 3.x – the x is a stand-in for sub-versions (or point releases as developers call them.) This means any version of Python 3.

How to Install Homebrew on Mac

First you need to install Homebrew, a powerful package manager for Mac.

Open up your terminal. You can do this by using MacOS spotlight (command+space) and typing «terminal».

Now that you’re in a command line, you can install the latest version of Homebrew by running this command:

Your terminal will ask for Super User-level access. You will need to type your password to run this command. This is the same password you type when you log into your Mac. Type it and hit enter.

A screenshot of my heavily customized terminal. Your terminal will probably look different from this.

Homebrew will ask you to confirm you want to install the following. You have to press enter to continue. (Or press any other key if you get cold feet.)

How to Install pyenv to Manage Your Python Versions

Now let’s take a moment to install PyEnv. This library will help you switch between different versions of Python (in case you need to run Python 2.x for some reason, and in anticipation of Python 4.0 coming).

Run this command:

PyEnv installing

Now you can install the latest version of Python.

How to Use pyenv to Install Python or Update Your Python Version

Now you just need to run the following command:

Note that you can substitute 3.9.2 for whatever the latest version of Python is. For example, once Python 4.0.0 comes out, you can run this:

Troubleshooting pyenv Installation

If you encounter an error that «C compiler cannot create executables» then the simplest way to solve this is to reinstall Apple’s Xcode.

Xcode is a tool created by Apple that includes all the C libraries and other tools that Python uses when it runs on MacOS. Xcode is a whopping 11 gigabytes, but you’ll want to be up-to-date. You may want to run this while you’re sleeping.

You can get the latest version of Apple’s Xcode here. I had to do this after upgrading to MacOS Big Sur, but once I did, all the following commands worked fine. Just re-run the above pyenv install 3.9.2 and it should now work.

How to Set Up Your MacOS PATH for pyenv (Bash or ZSH)

First you need to update your Unix path to pave a way for PyEnv to be able to interact with your system.

This is a long explanation of how PATH works in MacOS (and Unix), straight from the pyenv GitHub repo.

When you run a command like python or pip , your operating system searches through a list of directories to find an executable file with that name. This list of directories lives in an environment variable called PATH , with each directory in the list separated by a colon:

Directories in PATH are searched from left to right, so a matching executable in a directory at the beginning of the list takes precedence over another one at the end. In this example, the /usr/local/bin directory will be searched first, then /usr/bin , then /bin .

And here is their explanation of what a Shim is. I’m quoting them at length again because I really can’t explain this better myself.

pyenv works by inserting a directory of shims at the front of your PATH :

Through a process called rehashing, pyenv maintains shims in that directory to match every Python command across every installed version of Python— python , pip , and so on.

Shims are lightweight executables that simply pass your command along to pyenv.

Here’s how to update your .bash_profile in Bash (which is installed in MacOS by default):

Or if you’ve installed ZSH (or OhMyZSH) like I have, you’ll want to edit the .zshrc file instead:

Then you want to add PyEnv Init to your terminal. Run this command if you’re using Bash (again, this is the default with MacOS):

Or run this command if you’re using ZSH:

Now reset your terminal by running this command:

How to Set a Version of Python to Global Default (Bash or ZSH)

You can set the latest version of Python to be global, meaning it will be the default version of Python MacOS uses when you run Python applications.

Run this command:

Again, you can replace 3.9.2 with whatever the latest version is.

Now you can verify that this worked by checking the global version of Python:

You should see this output:

The * means that version is now the global default

The Final Step: Close Your Terminal and Restart it

Once you’ve restarted your browser, you run the python command and you’ll launch the new version of Python instead of the old one.

Yay. Python 3.9.2 and no deprecation warnings

Congratulations. Thank you for reading this, and happy coding.

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