How to use the tifffile.__version__.split function in tifffile

if not self.init:
            self.doOnSetDim()
            test = N.zeros((self.ny, self.nx), self.dtype)
            self.dataOffset, self._secByteSize = self.fp.save(test, resolution=self.res, metadata=self.metadata, returnoffset=True, extratags=self.extratags)
            self.handle.seek(self.handle.tell() - self._secByteSize)

            self.init = True
        
        if i is not None:
            self.seekSec(i)

        if self.style == 'RGB':
            photometric = 'RGB'
        else:
            photometric = None
        if int(tifffile.__version__.split('.')[1]) <= 14:
            offset, sec = self.fp.save(arr, resolution=self.res, metadata=self.metadata, returnoffset=True, photometric=photometric)
        else:
            offset, sec = self.fp.save(arr, resolution=self.res, metadata=self.metadata, returnoffset=True, software=self.software, photometric=photometric)