def getunicode(self, name, default=None, encoding=None):
        try:
            return self._fix(self[name], encoding)
        except (UnicodeError, KeyError):
            return default
try to figure out dockerfile from provided path and optionally from relative local path
dataset/ETHPy150Open Arelle/Arelle/arelle/webserver/bottle.py/FormsDict.getunicode--crossover with--dataset/ETHPy150Open projectatomic/atomic-reactor/atomic_reactor/util.py/figure_out_dockerfile