IPython requires Python 2.7 or ≥ 3.3.
Quickstart
If you have :mod:`pip`, the quickest way to get up and running with IPython is:
$ pip install ipython
To use IPython with notebooks or the Qt console, you should also install jupyter.
To run IPython's test suite, use the :command:`iptest` command:
$ iptest
Overview
This document describes in detail the steps required to install IPython. For a few quick ways to get started with package managers or full Python distributions, see the install page of the IPython website.
Please let us know if you have problems installing IPython or any of its dependencies.
IPython and most dependencies can be installed via :command:`pip`. In many scenarios, this is the simplest method of installing Python packages. More information about :mod:`pip` can be found on its PyPI page.
More general information about installing Python packages can be found in Python's documentation.
Installing IPython itself
Given a properly built Python, the basic interactive IPython shell will work with no external dependencies. However, some Python distributions (particularly on Windows and OS X), don't come with a working :mod:`readline` module. The IPython shell will work without :mod:`readline`, but will lack many features that users depend on, such as tab completion and command line editing. If you install IPython with :mod:`pip`, then the appropriate :mod:`readline` for your platform will be installed. See below for details of how to make sure you have a working :mod:`readline`.
Installation using pip
If you have :mod:`pip`, the easiest way of getting IPython is:
$ pip install ipython
That's it.
Installation from source
If you don't want to use :command:`pip`, or don't have it installed, grab the latest stable tarball of IPython from PyPI. Then do the following:
$ tar -xzf ipython.tar.gz $ cd ipython $ pip install .
If you are installing to a location (like /usr/local) that requires higher permissions, you may need to run the last command with :command:`sudo`.
Installing the development version
It is also possible to install the development version of IPython from our Git source code repository. To do this you will need to have Git installed on your system. Then do:
$ git clone https://github.com/ipython/ipython.git $ cd ipython $ pip install .
Some users want to be able to follow the development branch as it changes. If you have :mod:`pip`, you can replace the last step by:
$ pip install -e .
This creates links in the right places and installs the command line script to the appropriate places.
Then, if you want to update your IPython at any time, do:
$ git pull
Dependencies
IPython relies on a number of other Python packages. Installing using a package manager like pip or conda will ensure the necessary packages are installed. If you install manually, it's up to you to make sure dependencies are installed. They're not listed here, because they may change from release to release, so a static list will inevitably get out of date.
It also has one key non-Python dependency which you may need to install separately.
readline
IPython's terminal interface relies on readline to provide features like tab completion and history navigation. If you only want to use IPython as a kernel for Jupyter notebooks and other frontends, you don't need readline.
On Windows, to get full console functionality, PyReadline is required. PyReadline is a separate, Windows only implementation of readline that uses native Windows calls through :mod:`ctypes`. The easiest way of installing PyReadline is you use the binary installer available here.
On OS X, if you are using the built-in Python shipped by Apple, you will be missing a proper readline implementation as Apple ships instead a library called libedit that provides only some of readline's functionality. While you may find libedit sufficient, we have occasional reports of bugs with it and several developers who use OS X as their main environment consider libedit unacceptable for productive, regular use with IPython.
Therefore, IPython on OS X depends on the :mod:`gnureadline` module. We will not consider completion/history problems to be bugs for IPython if you are using libedit.
To get a working :mod:`readline` module on OS X, do (with :mod:`pip` installed):
$ pip install gnureadline
Note
Other Python distributions on OS X (such as Anaconda, fink, MacPorts) already have proper readline so you likely don't have to do this step.
When IPython is installed with :mod:`pip`, the correct readline should be installed if you specify the terminal optional dependencies:
$ pip install "ipython[terminal]"
On Linux, readline is normally installed by default. If not, install it from your system package manager. If you are compiling your own Python, make sure you install the readline development headers first.