def get(self, key):
        
        if key in self.__combination:
            return self.__combination[key]
            
        return None
>>> text = '''
dataset/ETHPy150Open zynga/jasy/jasy/core/Permutation.py/Permutation.get--crossover with--dataset/ETHPy150Open limodou/par/test/test_md.py/test_table_0