Installing

Quick install

Get NetworkX from the Python Package Index at http://pypi.python.org/pypi/networkx

or install it with:

easy_install networkx

and an attempt will be made to find and install an appropriate version that matches your operating system and Python version.

More download file options are at http://networkx.lanl.gov/download.html

Installing from source

You can install from source by downloading a source archive file (tar.gz or zip) or by checking out the source files from the Mercurial source code repository.

NetworkX is a pure Python package; you don’t need a compiler to build or install it.

Source archive file

1. Download the source (tar.gz or zip file) from http://cheeseshop.python.org/pypi/networkx/ or get the latest development version from http://networkx.lanl.gov/hg/networkx
2. Unpack and change directory to the source directory (it should have the files README.txt and setup.py).
3. Run “python setup.py install” to build and install
4. (optional) Run “python setup_egg.py nosetests” to execute the tests

Mercurial repository

1. Clone the networkx repostitory

   hg clone http://networkx.lanl.gov/hg/networkx

2. Change directory to “networkx”

3. Run “python setup.py install” to build and install

4. (optional) Run “python setup_egg.py nosetests” to execute the tests

If you don’t have permission to install software on your system, you can install into another directory using the –user, –prefix, or –home flags to setup.py.

For example

python setup.py install --prefix=/home/username/python
or
python setup.py install --home=~
or
python setup.py install --user

If you didn’t install in the standard Python site-packages directory you will need to set your PYTHONPATH variable to the alternate location. See http://docs.python.org/inst/search-path.html for further details.

Requirements

Python

To use NetworkX you need Python version 2.6 or later. Most of NetworkX works with Python version 3.1.2 or later. http://www.python.org/

The easiest way to get Python and most optional packages is to install the Enthought Python distribution http://www.enthought.com/products/epd.php

Other options are:

Windows

• Official Python site version: http://www.python.org/download/
• ActiveState version: http://www.activestate.com/activepython/

OSX

• Official Python site version http://www.python.org/download/
• ActiveState http://activestate.com/Products/ActivePython/

If you are using Fink or MacPorts, Python is available through both of those package systems.

Linux

Python is included in all major Linux distributions

Optional packages

The following are optional packages that NetworkX can use to provide additional functions.

NumPy

Provides matrix representation of graphs and is used in some graph algorithms for high-performance matrix computations.

• Download: http://scipy.org/Download

SciPy

Provides sparse matrix representation of graphs and many numerical scientific tools.

• Download: http://scipy.org/Download

Matplotlib

Provides flexible drawing of graphs.

• Download: http://matplotlib.sourceforge.net/

GraphViz

In conjunction with either

• PyGraphviz: http://networkx.lanl.gov/pygraphviz/

or

• pydot: http://code.google.com/p/pydot/

provides graph drawing and graph layout algorithms.

• Download: http://graphviz.org/

Pyparsing

http://pyparsing.wikispaces.com/

Required for pydot, GML file reading.

PyYAML

http://pyyaml.org/

Required for YAML format reading and writing.

Other packages

These are extra packages you may consider using with NetworkX

• IPython, interactive Python shell, http://ipython.scipy.org/
• PyYAML, structured output format, http://pyyaml.org/