def get_file(self, key, from_=False):
        start, stop = self._lookup(key)
        self._file.seek(start)
        if not from_:
            self._file.readline()
        return _PartialFile(self._file, self._file.tell(), stop)
Return a file-like representation or raise a KeyError.
dataset/ETHPy150Open babble/babble/include/jython/Lib/mailbox.py/_mboxMMDF.get_file