graphes
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python-graph is a library for working with graphs in Python. This software provides a suitable data structure for representing graphs and a whole set of important algorithms. The code is appropriately documented and API reference is generated automatically by epydoc . Comments, bug reports and suggestions are welcome. Current release: 1.8.2 - Jul 14, 2012 Please check our Changelog for detailed information.
python-graph - A library for working with graphs in Python
yEd is a powerful desktop application that can be used to quickly and effectively generate high-quality diagrams. Create diagrams manually, or import your external data for analysis. Our automatic layout algorithms arrange even large data sets with just the press of a button. yEd is freely available and runs on all major platforms: Windows, Unix/Linux, and Mac OS X . The latest release is version 3.10.2
yEd - Graph Editor
Current Version Stable: 0.8.2 (April 2009) Development: 0.9.0-SNAPSHOT through SVN only (September 2012)
ZGRViewer