python-igraph 0.9.1

Changed

• Calling plot() without a filename or a target surface is now deprecated.
  The original intention was to plot to a temporary file and then open it in
  the default image viewer of the platform of the user automatically, but this
  has never worked reliably. The feature will be removed in 0.10.0.

Fixed

• Fixed plotting of VertexClustering objects on Matplotlib axes.

• The IGRAPH_CMAKE_EXTRA_ARGS environment variable is now applied after the
  default CMake arguments when building the C core of igraph from source. This
  enables package maintainers to override any of the default arguments we pass
  to CMake.

• Fixed the documentation build by replacing Epydoc with PyDoctor.

Miscellaneous

• Building python-igraph from source should not require flex and bison
  any more; sources of the parsers used by the C core are now included in the
  Python source tarball.

• Many old code constructs that were used to maintain compatibility with Python
  2.x are removed now that we have dropped support for Python 2.x.

• Reading GraphML files is now also supported on Windows if you use one of the
  official Python wheels.