Note
Check out our guide for installing Python 3 on OS X.
IPython provides a rich architecture for interactive computing with a powerful interactive shell, a kernel for Jupyter, high performance tools for parallel computing, and more. Gallery About Documentation Support About Anaconda, Inc. Download Anaconda. Anaconda Community Open.
- Atom-ipython-exec Send python code from Atom to be executed into an ipython session running inside a terminal. Tested on Mac OS X and Ubuntu; in the former case, the reference terminal application is iTerm2, whereas gnome-terminal is used in the latter.
- Beginning with version 6.0, IPython stopped supporting compatibility with Python versions lower than 3.3 including all versions of Python 2.7. If you are looking for an IPython version compatible with Python 2.7, please use the IPython 5.x LTS release and refer to its documentation (LTS is.
Mac OS X comes with Python 2.7 out of the box.
You do not need to install or configure anything else to use Python. Having saidthat, I would strongly recommend that you install the tools and librariesdescribed in the next section before you start building Python applications forreal-world use. In particular, you should always install Setuptools, as it makesit much easier for you to install and manage other third-party Python libraries.
The version of Python that ships with OS X is great for learning, but it’s notgood for development. The version shipped with OS X may be out of date from theofficial current Python release,which is considered the stable production version.
Doing it Right¶
Let’s install a real version of Python.
Before installing Python, you’ll need to install a C compiler. The fastest wayis to install the Xcode Command Line Tools by runningxcode-select--install. You can also download the full version ofXcode from the Mac App Store, or theminimal but unofficialOSX-GCC-Installerpackage.
Note
If you already have Xcode installed, do not install OSX-GCC-Installer.In combination, the software can cause issues that are difficult todiagnose.
Note
If you perform a fresh install of Xcode, you will also need to add thecommandline tools by running xcode-select--install on the terminal.
While OS X comes with a large number of Unix utilities, those familiar withLinux systems will notice one key component missing: a decent package manager.Homebrew fills this void.
To install Homebrew, open Terminal oryour favorite OS X terminal emulator and run
The script will explain what changes it will make and prompt you before theinstallation begins.Once you’ve installed Homebrew, insert the Homebrew directory at the topof your PATH environment variable. You can do this by adding the followingline at the bottom of your ~/.profile file
Now, we can install Python 2.7:
Because python@2 is a “keg”, we need to update our PATH again, to point at our new installation:
Homebrew names the executable python2 so that you can still run the system Python via the executable python.
Setuptools & Pip¶
Homebrew installs Setuptools and pip for you.
Setuptools enables you to download and install any compliant Pythonsoftware over a network (usually the Internet) with a single command(easy_install). It also enables you to add this network installationcapability to your own Python software with very little work.
pip is a tool for easily installing and managing Python packages,that is recommended over easy_install. It is superior to easy_installin several ways,and is actively maintained.
Virtual Environments¶
A Virtual Environment (commonly referred to as a ‘virtualenv’) is a tool to keep the dependencies required by different projectsin separate places, by creating virtual Python environments for them. It solves the“Project X depends on version 1.x but, Project Y needs 4.x” dilemma, and keepsyour global site-packages directory clean and manageable.
For example, you can work on a project which requires Django 1.10 while alsomaintaining a project which requires Django 1.8.
To start using this and see more information: Virtual Environments docs.
This page is a remixed version of another guide,which is available under the same license.
This post describes how to install IPython on a Mac OS X, Mountain Lion. Step by step, it explains how to install Python, Homebrew, Virtualenv, IPython, IPython Notebook and some useful libraries like Matplotlib.
Do you want to install IPython on Mac OS X? Check out this tutorial! http://t.co/Di3Wd3pd5k#python
— Marina Mele (@Marina_Mele) February 5, 2014
Mac OS X comes with Python 2.7 already installed, that can be used for learning but which might be out of date. Therefore, in this post we will explain how to install the real version of Python as well, which is better for developing.
Install XCode
Go to the Apple Store and download the free version of XCode.
Once installed, launch the application from the Launchpad menu.
In the upper menu go to Xcode –> preferences…, or alternatively use the shortcut cmd+,.
Once in the preferences window go to the Downloads tab and install the Command Line Tools, which is in the Components section. To install it you just need to click in the right arrow.
Install Homebrew
To download and install Homebrew you need to run the following command in the Terminal:
$ ruby -e “$(curl -fsSL https://raw.github.com/mxcl/homebrew/go)”
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Install Python 2.7
Now it’s very easy to install Python! just write the following in your Terminal:
$ brew install python
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Unfortunately, when we run python on the Terminal, we will still be using the preinstalled Python that comes with Mac OS X. We need to change the path to point to the new version of Python.
Open (or create if you don’t have it yet) the file ~/.profile and write the following lines in it:
PATH=/usr/local/bin:/usr/local/share/python:$PATH
export PATH
The good thing about installing Python with Homebrew is that you also install pip and Distribute, which extend the packaging and installation facilities provided by the distutils in the standard library.
Virtual Environment
A good practice is to use a virtual environment to have all the packages that you are using for one project in the same folder. It is more easy to share and maintain.
To install Virtualenv:
$ sudo pip install virtualenv
Let us create a new virtual enviroment, called envipython
$ virtualenv envipython
which will create the folder envipython. To activate this environment:
$ source envipython/bin/activate
Note that the command line has changed to somehting like (envipython)$.
From now on, we will install the packages using this virtual environment. If you don’t want to use a virtual environment, you can install them in your machine with the same command lines.
Install IPython and IPython Notebook
$ pip install ipython
IPython comes with a very nice web-based notebook environment, which allows you to run python scripts in a similar way as with Mathematica or Matlab.
To install it, you will need to add the following libraries:
$ brew install freetype
$ brew install libpng
$ pip install readline
$ pip install tornado
$ brew install zeromq –universal
$ pip install pyzmq
$ pip install pygments
$ brew install pyqt
$ pip install jinja2
And that’s it! To run your IPython Notebook you only need:
$ ipython notebook
If you also want to install MathJax, which is an open source JavaScript display engine for mathematics, you need to enter to the IPython shell and type the following:
$ ipython
In [1]: from IPython.external.mathjax import install_mathjax
In [2]: install_mathjax()
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Optional Science Packages
$ pip install numpy
$ pip install scipy
For Matplotlib you also have to install the library pkg-config (which in my case, it was already installed). Moreover, you might want to install ffmpeg, which allows to save movies using matplotlib.animation library.
$ brew install pkg-config
$ brew install ffmpeg
$ pip install matplotlib
Whohaaa!! that was a little bit of installation!?! Hope it also worked for you! 🙂