def seek(self, offset, whence=0):
        """Change position."""
        if whence == 1:
            self._file.seek(self._pos)
        self._file.seek(offset, whence)
        self._pos = self._file.tell()
dataset/ETHPy150Open babble/babble/include/jython/Lib/mailbox.py/_ProxyFile.seek/original