def process_raise_field(api_doc, docindex, tag, arg, descr):
    _check(api_doc, tag, arg, context=RoutineDoc, expect_arg='single')
    try: name = DottedName(arg)
    except DottedName.InvalidDottedName: name = arg
    api_doc.exception_descrs.append( (name, descr) )
Record the fact that C{api_doc} can raise the exception named
dataset/ETHPy150Open ardekantur/pyglet/tools/epydoc/epydoc/docstringparser.py/process_raise_field