The mapping from OMG IDL to Python defines accessor functions for IDL
attribute declarations in much the way the Java mapping
does. Mapping the IDL declarations
yields three accessor functions: a ``get'' method for
someValue (_get_someValue()), and ``get'' and
``set'' methods for
anotherValue (_get_anotherValue() and
_set_anotherValue()). The mapping, in particular, does not
require that the IDL attributes are accessible as normal Python
attributes: object.someValue is not required to
work, and may raise an AttributeError.
The Python DOM API, however, does require that normal attribute
access work. This means that the typical surrogates generated by
Python IDL compilers are not likely to work, and wrapper objects may
be needed on the client if the DOM objects are accessed via CORBA.
While this does require some additional consideration for CORBA DOM
clients, the implementers with experience using DOM over CORBA from
Python do not consider this a problem. Attributes that are declared
readonly may not restrict write access in all DOM
implementations.
Additionally, the accessor functions are not required. If provided,
they should take the form defined by the Python IDL mapping, but
these methods are considered unnecessary since the attributes are
accessible directly from Python. ``Set'' accessors should never be
provided for readonly attributes.
