code: def seek(self, position, whence=os.SEEK_SET):
          
          _complain_ifclosed(self.closed)
          return self.f.seek(position, whence)
docs: Seek to ``position`` in file.
  
          :type position: int
          :param position: offset in bytes to seek to
          :type whence: int
          :param whence: defaults to ``os.SEEK_SET`` (absolute); other
            values are ``os.SEEK_CUR`` (relative to the current position)
            and ``os.SEEK_END`` (relative to the file's end).