Something

def readPacket(self):
			try:
				header = self.tcp.recv(1)
				ID = self.tcp.recv(1)
				length = self.tcp.recv(2)
				print self.ord(header)
				print self.ord(ID)
			except:
				#no data
				return [0,0,0]
				

			try:
				intlength = self.ord(length[0]) + self.ord(length[1])
				data = self.tcp.recv(intlength)
				decompressed_data = self.zlib.decompress(data)
				return [header,ID,decompresseed_data]
			except:
				return [0,0,0]

#It prints out 48 then 65 when it should be the other way #around.. for some reason the ID and the header are flipped.
#here is the function that assembles the packet and sends it

#called from the server
#packet = libpac.newPacket(libpac.PAC_AUTH_LOGINGOOD,0,str(result[1]) + str(result[2]) )
#here is the code for newPacket 

def newPacket (header, ID,data):
	compressed_data = zlib.compress(data)
	compressed_header = chr(header)
	compressed_id = chr(ID)
	if len(compressed_data) > 255:
		length1 = chr(255)
		legth2 = chr(len(compressed_data) - 255)
	else:
		length1 = chr(len(compressed_data))
		length2 = chr(0)

	packet = compressed_header + compressed_id + length1 + length2 + compressed_data
	return packet