def __init__(self):
        super(HierarchicalDict, self).__init__()
        self.base = dict()
Extract error description from *pytest* error description.
dataset/ETHPy150Open duerrp/pyexperiment/pyexperiment/utils/HierarchicalMapping.py/HierarchicalDict.__init__--crossover with--dataset/ETHPy150Open okcompute/vim-python-tests-runner/compiler/runners/pytest.py/match_error