def seek(self, offset, whence=0):
        if whence == 0:
            self._pos = self._start
            whence = 1
        elif whence == 2:
            self._pos = self._stop
            whence = 1
        _ProxyFile.seek(self, offset, whence)
Change position, possibly with respect to start or stop.
dataset/ETHPy150Open babble/babble/include/jython/Lib/mailbox.py/_PartialFile.seek