altgraph is a fork of graphlib: a graph (network) package for constructing graphs, BFS and DFS traversals, topological sort, shortest paths, etc. with graphviz output.

altgraph includes some additional usage of Python 2.6+ features and enhancements related to modulegraph and macholib.

Project links

• Documentation

• Issue Tracker

• Repository

Release history

0.17.5

• Update classifiers for Python 3.13 and 3.14

• Drop dependency on "pkg_resources"

0.17.4

• Update classifiers for Python 3.12

0.17.3

• Update classifiers for Python 3.11

0.17.2

• Change in setup.py to fix the sidebar links on PyPI

0.17.1

• Explicitly mark Python 3.10 as supported in wheel metadata.

0.17

• Explicitly mark Python 3.8 as supported in wheel metadata.

• Migrate from Bitbucket to GitHub

• Run black on the entire repository

0.16.1

• Explicitly mark Python 3.7 as supported in wheel metadata.

0.16

• Add LICENSE file

0.15

• ObjectGraph.get_edges, ObjectGraph.getEdgeData and ObjectGraph.updateEdgeData

accept None as the node to get and treat this as an alias for self (as other methods already did).

0.14

• Issue #7: Remove use of iteritems in altgraph.GraphAlgo code

0.13

• Issue #4: Graph._bfs_subgraph and back_bfs_subgraph return subgraphs with reversed edges

Fix by "pombredanne" on bitbucket.

0.12

• Added ObjectGraph.edgeData to retrieve the edge data

from a specific edge.

• Added AltGraph.update_edge_data and ObjectGraph.updateEdgeData

to update the data associated with a graph edge.

0.11

• Stabilize the order of elements in dot file exports,

patch from bitbucket user 'pombredanne'.

• Tweak setup.py file to remove dependency on distribute (but

keep the dependency on setuptools)

0.10.2

• There where no classifiers in the package metadata due to a bug

in setup.py

0.10.1

This is a bugfix release

Bug fixes:

• Issue #3: The source archive contains a README.txt

while the setup file refers to ReadMe.txt.

This is caused by a misfeature in distutils, as a workaround I've renamed ReadMe.txt to README.txt in the source tree and setup file.

0.10

This is a minor feature release

Features:

• Do not use "2to3" to support Python 3.

As a side effect of this altgraph now supports Python 2.6 and later, and no longer supports earlier releases of Python.

• The order of attributes in the Dot output

is now always alphabetical.

With this change the output will be consistent between runs and Python versions.

0.9

This is a minor bugfix release

Features:

• Added altgraph.ObjectGraph.ObjectGraph.nodes, a method

yielding all nodes in an object graph.

Bugfixes:

• The 0.8 release didn't work with py2app when using

python 3.x.

0.8

This is a minor feature release. The major new feature is a extensive set of unittests, which explains almost all other changes in this release.

Bugfixes:

• Installing failed with Python 2.5 due to using a distutils

class that isn't available in that version of Python (issue #1 on the issue tracker)

• altgraph.GraphStat.degree_dist now actually works

• altgraph.Graph.add_edge(a, b, create_nodes=False) will

no longer create the edge when one of the nodes doesn't exist.

• altgraph.Graph.forw_topo_sort failed for some sparse graphs.

• altgraph.Graph.back_topo_sort was completely broken in

previous releases.

• altgraph.Graph.forw_bfs_subgraph now actually works.

• altgraph.Graph.back_bfs_subgraph now actually works.

• altgraph.Graph.iterdfs now returns the correct result

when the forward argument is False.

• altgraph.Graph.iterdata now returns the correct result

when the forward argument is False.

Features:

• The altgraph.Graph constructor now accepts an argument

that contains 2- and 3-tuples instead of requireing that all items have the same size. The (optional) argument can now also be any iterator.

• altgraph.Graph.Graph.add_node has no effect when you

add a hidden node.

• The private method altgraph.Graph._bfs is no longer

present.

• The private method altgraph.Graph._dfs is no longer

present.

• altgraph.ObjectGraph now has a __contains__ methods,

which means you can use the in operator to check if a node is part of a graph.

• altgraph.GraphUtil.generate_random_graph will raise

GraphError instead of looping forever when it is impossible to create the requested graph.

• altgraph.Dot.edge_style raises GraphError when

one of the nodes is not present in the graph. The method silently added the tail in the past, but without ensuring a consistent graph state.

• altgraph.Dot.save_img now works when the mode is

"neato".

0.7.2

This is a minor bugfix release

Bugfixes:

• distutils didn't include the documentation subtree

0.7.1

This is a minor feature release

Features:

• Documentation is now generated using sphinx

and can be viewed at <http://packages.python.org/altgraph>.

• The repository has moved to bitbucket

• altgraph.GraphStat.avg_hops is no longer present, the function had no

implementation and no specified behaviour.

• the module altgraph.compat is gone, which means altgraph will no

longer work with Python 2.3.

0.7.0

This is a minor feature release.

Features:

• Support for Python 3

• It is now possible to run tests using 'python setup.py test'

(The actual testsuite is still very minimal though)