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python-igraph 0.9.0

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@github-actions github-actions released this 26 Feb 01:30
0.9.0
904d5d9
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ntamas Tamás Nepusz
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Added

  • Graph.DataFrame now has a use_vids=... keyword argument that decides whether
    the data frame contains vertex IDs (True) or vertex names (False). (PR #348, thanks to @iosonofabio)

  • Added MatplotlibGraphDrawer to draw a graph on an existing Matplotlib
    figure. (PR #341, thanks to @iosonofabio)

  • Added a code path to choose between preferred image viewers on FreeBSD. (PR #354, thanks @thierry-FreeBSD)

  • Added Graph.harmonic_centrality() that wraps igraph_harmonic_centrality()
    from the underlying C library.

Changed

  • python-igraph is now compatible with igraph 0.9.0.

  • The setup script was adapted to the new CMake-based build system of igraph.

  • Dropped support for older Python versions; the oldest Python version that
    python-igraph is tested on is now Python 3.6.

  • The default splitting heuristic of the BLISS isomorphism algorithm was changed
    from IGRAPH_BLISS_FM (first maximally non-trivially connected non-singleton cell)
    to IGRAPH_BLISS_FL (first largest non-singleton cell) as this seems to provide
    better performance on a variety of graph classes. This change is a follow-up
    of the change in the recommended heuristic in the core igraph C library.

Fixed

  • Fixed crashes in the Python-C glue code related to the handling of empty
    vectors in certain attribute merging functions (see issue #358).

  • Fixed a memory leak in Graph.closeness_centrality() when an invalid cutoff
    argument was provided to the function.

  • Clarified that the fixed=... argument is ineffective for the DrL layout
    because the underlying C code does not handle it. The argument was not
    removed for sake of backwards compatibility.

  • VertexSeq.find(name=x) now works correctly when x is an integer; fixes
    #367

Miscellaneous

  • The Python codebase was piped through black for consistent formatting.

  • Wildcard imports were removed from the codebase.

  • CI tests were moved to Github Actions from Travis.

  • The core C library is now built with -fPIC on Linux to allow linking to the
    Python interface.

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