parse D-Bus introspection XML and process it in various ways

 dbus-deviation is a project for parsing D-Bus introspection XML and
 processing it in various ways. Its main tool is dbus-interface-diff,
 which calculates the difference between two D-Bus APIs for the purpose
 of checking for API breaks.
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 This functionality is also available as a Python module, dbusdeviation.
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 A second Python module, dbusapi, is provided for parsing D-Bus
 introspection XML to produce an AST representing a D-Bus interface.