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).
Sep 24, 2019 Mac OS uses default 2.x version out of box. To check whether, python has been installed successfully. Try the following command. Python3 -V Python 3.5.0 Above step ensure that Python 3.5 has been installed successfully. This is the high level outline of this post: Mas OS X - Python 3.5 - Virtaulenv - Flask - app.py(first Hello world ). Download Current Release - 1.74 - 16 July 2019. See also What’s new. Installation Instructions. Recent versions of Python (starting with Python 2.7.9 and Python 3.4) include the Python package management tool pip, which allows an easy installation from the command line on all platforms. Try: pip install biopython. For Mac OS X. Dec 18, 2017 Hi there, having a problem installing python 2.7.8 for mac. When installing the software, it says, “Installer failed, cannot install because there is no software to install.” I specifically need this.
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:
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
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:
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. 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. Contents Python has always been known for its simplicity and ease of use. It’s like any other powerful programming language in which a programmer can use third-party libraries or frameworks to get rid of the hassle of coding from scratch. You can find readymade libraries or frameworks on a central repository called PyPI (Python Package Index). But the sad part is downloading, installing and managing them can be frustrating sometimes. So this is why many Python developers depend on a special type of tool called PIP for Python to make everything much faster and easier. The term PIP stands for “Preferred Installer Program”. It’s a command line utility that allows you to install, reinstall and uninstall the PyPi packages with simple and straightforward command and that is “pip”. So if you are already familiar with Command Prompt of windows or with a terminal or bash of Mac and Linux then you will feel right at home. Thus we advise you to skip this portion and move right away to installation instructions of the program for the particular operating system. But before moving further many of you might be thinking. And the answer is if you are using Python 2.7.9 (or greater) or Python 3.4 (or greater), then yes, PIP comes preloaded with python as a default. But if you are using some older version of Python then you have to install it by following the below mentioned instructions. In order to check if the Python is properly installed on your device or not you have to follow up the steps below. Important Note – The below-mentioned steps are the same for Windows, Linux, and Mac. All you need is to run Command Prompt, terminal or bash program respectively. Type – ( If you got a version number e.g. “Python 2.7.5” or any other, then it means Python is ready to go. Otherwise, you have to install Python First. In order to install PIP for Python on Windows, you need to follow the instructions mentioned below. One thing to keep in mind is that this should work for Windows 7, Windows 8.1, and Windows 10. When it comes to installing PIP on Mac then many modern Macs comes preloaded with Python and PIP. But actually, that version of Python is a bit outdated, keeping in mind the serious Python development. So we advise you to install the current version of Python for maximum output. If you want to use the native Python installation but don’t have PIP available, you can install PIP with the following command in Terminal: Installing PIP on Linux Operating system is a bit different as compared to Mac and Windows. You need to check first if the Python is already installed or not. But if your Linux distro came with Python already installed, you should be able to install PIP using your system’s package manager. This is important because system-installed versions of Python do not play nicely with the get-pip.py script used on Windows and Mac. So keep this in mind. Following are the commands for Different Python versions: Advanced Package Tool (Python 2.x) Advanced Package Tool (Python 3.x) pacman Package Manager (Python 2.x) pacman Package Manager (Python 3.x) Yum Package Manager (Python 2.x) Yum Package Manager (Python 3.x) Dandified Yum (Python 2.x) Dandified Yum (Python 3.x) Zypper Package Manager (Python 2.x) Zypper Package Manager (Python 3.x) If you own a Raspberry Pi then you must be using its official Operating system “Raspbian“. Talking about Raspbian Jessie, then PIP comes preloaded with it as default. So this is the reason why you should shift to Raspbian Jessie instead of Raspbian Wheezy. Following are the set of instructions in order to install PIP on Raspberry Pi: On Python 2.x: On Python 3.x: With Raspbian, Python 2.x users should use pip while Python 3.x users should use pip3 when issuing PIP commands. So this was all regarding the best way to Install PIP for Python in different operating systems. So if you find it useful then do let us know in the comment section below, would love to hear that. Stay tuned for more.What is PIP?
Does PIP comes preloaded with Python?
Python For Mac Os
How to check if Python is Properly installed on your computer or not?
python --version ) and for Python 3.x users they may need to use – (python3 --version).How to install PIP on Windows
How to install PIP on Mac
How to install PIP on Linux
Download Python For Mac
sudo zypper install python3-pip python3-setuptools python3-wheelHow to install PIP on Raspberry Pi
Conclusion
Download Python 3.7 On Mac
Install Python 3.6 For Mac