def _read_julian(fid, tag, shape, rlims):
 return jd2jcal(int(np.fromstring(fid.read(4), dtype='>i4')))

def _read_julian ( fid , tag , shape , rlims ) : return jd2jcal ( int ( np . fromstring ( fid . read ( 4 ) , dtype = '>i4' ) ) )
read julian tag .