igraph 0.10.2

Added

• python-igraph is now tested in Python 3.11.
• Added Graph.modularity_matrix() to calculate the modularity matrix of a graph.
• Added Graph.get_k_shortest_paths(), thanks to @sombreslames. See PR #577 for details.
• The setup.py script now also accepts environment variables instead of command line arguments to configure several aspects of the build process (i.e. whether a fully static extension is being built, or whether it is allowed to use pkg-config to retrieve the compiler and linker flags for an external igraph library instead of the vendored one). The environment variables are named similarly to the command line arguments but in uppercase, dashes replaced with underscores, and they are prefixed with IGRAPH_ (i.e. --use-pkg-config becomes IGRAPH_USE_PKG_CONFIG).

Changed

• The C core of igraph was updated to version 0.10.2, fixing a range of bugs originating from the C core.

Fixed

• Fixed a crash in Graph.decompose() that was accidentally introduced in 0.10.0 during the transition to igraph_graph_list_t in the C core.
• Clustering.sizes() now works correctly even if the membership vector contains None items.
• Graph.modularity() and Graph.community_multilevel() now correctly expose the resolution parameter.
• Fixed a reference leak in Graph.is_chordal() that decreased the reference count of Python's built-in True and False constants unnecessarily.
• Unit tests updated to get rid of deprecation warnings in Python 3.11.