Changes

   “”“Compute and return the checksum as an int.”“”   # group the data by word, little-endian   data_list = []   for t in range(10):       data_list.append( data2*t + (data2*t+1<<8) )

   # compute the checksum on 32 bits   chk32 = 0   for d in data_list:       chk32 = (chk32 << 1) + d

   # return a value wrapped around on 15bits, and truncated to still fit into 15 bits   checksum = (chk32 & 0x7FFF) + ( chk32 >> 15 ) # wrap around to fit into 15 bits   checksum = checksum & 0x7FFF # truncate to 15 bits   return int( checksum )<br />