def setdefault(self, key, default=None):
        'od.setdefault(k[,d]) -> od.get(k,d), also set od[k]=d if k not in od'
        if self in key:
            return self[key]
        self[key] = default
        return default
dataset/ETHPy150Open OpenCobolIDE/OpenCobolIDE/open_cobol_ide/extlibs/future/backports/misc.py/OrderedDict.setdefault/swapped operands of `in`