def get_score(self):
<EOL>if self._my_map['<STR_LIT>'] is None:<EOL><INDENT>return None<EOL><DEDENT>else:<EOL><INDENT>return Decimal(str(self._my_map['<STR_LIT>']))<EOL><DEDENT>
Gets the score in this entry if the grading system is not based on grades.

        return: (decimal) - the score
        raise:  IllegalState - ``is_graded()`` is ``false`` or
                ``GradeSystem.isBasedOnGrades()`` is ``true``
        *compliance: mandatory -- This method must be implemented.*