domain.py

class Domain(object):

    ''' STRIPS domain representation '''

    def __init__(self, name, requirements, types, predicates, operators):
        self._name = name
        self._requirements = requirements
        self._types = types
        self._predicates = predicates
        self._operators = operators

    # getters
    @property
    def name(self):
        return self._name

    @property
    def requirements(self):
        return self._requirements[:]

    @property
    def types(self):
        return self._types[:]

    @property
    def predicates(self):
        return self._predicates[:]

    @property
    def operators(self):
        return self._operators[:]

    def __str__(self):
        domain_str  = '@ Domain: {0}\n'.format(self._name)
        domain_str += '>> requirements: {0}\n'.format(', '.join(self._requirements))
        domain_str += '>> types: {0}\n'.format(', '.join(self._types))
        domain_str += '>> predicates: {0}\n'.format(', '.join(map(str, self._predicates)))
        domain_str += '>> operators:\n    {0}\n'.format(
            '\n    '.join(str(op).replace('\n', '\n    ') for op in self._operators))
        return domain_str