I might get an answer since I didn't call them arrays. :^) Ok, I have 2 lists that I need to process individually, then merge them into a 2x list and fill with data.
arinc429 = ['ab', '2b', '0b', '21', 'c1', '61', '11', 'db', '9b', '5b', 'eb', '6b', '1b', '6e', '3e'] iPIDs = [300, 301, 320, 321] merged[arinc429, iPIDs] # PID & a429 are defined elsewhere a_idx = iPIDs.index[PID] p_idx = [arinc429.index[a429] # shouldn't I be able to fill the lists simply by pointing to a location? matrix[a_idx, p_idx] = 0x219 # and so on? tia -- http://mail.python.org/mailman/listinfo/python-list