@property
    def mapping(self):
        return getattr(self, '_mapping', None)
Project objects know how to update the version numbers in those
dataset/ETHPy150Open simpeg/simpeg/SimPEG/Problem.py/BaseProblem.mapping--crossover with--dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/python/test/test_release.py/ProjectTest.test_updateVersion