How do I parse a captured packet in python?

I have a capture packet raw packet using python's sockets:

s = socket.socket(socket.AF_PACKET, socket.SOCK_RAW, socket.ntohs(0x0003))

while True:
    message = s.recv(4096)
    test = []
    print(len(message))
    print(repr(message))

I assumed that the packet returned would be in hex string format, however the printout of print(repr(message)) get me something like this:

b'\x00\x1b\xac\x00Gd\x00\x14\xd1+\x1f\x19\x05\n\x124VxC!UUUU\x00\x00\x00\x00\xcd\xcc\xcc=\xcd\xccL>\x9a\x99\x99>\xcd\xcc\xcc>\x00\x00\x00?\x9a\x......'

which has weird non hex characters like !UUUU or =. What encoding is this, and how do I decode the packet?

I know what the packet looks like ahead of time for now, since I'm the one generating the packets using winpcapy:

from ctypes import *
from winpcapy import *
import zlib
import binascii
import time


from ChanPackets import base, FrMessage, FrTodSync, FrChanConfig, FlChan, RlChan


while (1):

    now = time.time()

    errbuf = create_string_buffer(PCAP_ERRBUF_SIZE)
    fp = pcap_t
    deviceName = b'\\Device\\NPF_{8F5BD2E9-253F-4659-8256-B3BCD882AFBC}'
    fp = pcap_open_live(deviceName, 65536, 1, 1000, errbuf)

    if not bool(fp):
        print ("\nUnable to open the adapter.  %s is not supported by WinPcap\n" % deviceName)
        sys.exit(2)

    # FrMessage is a custom class that creates the packet
    test = FrMessage('00:1b:ac:00:47:64', '00:14:d1:2b:1f:19', 0x12345678, 0x4321, 0x55555555, list(i/10 for i in range(320)))

    # test.get_Raw_Packet() returns a c_bytes array needed for winpcap to send the packet
    if (pcap_sendpacket(fp, test.get_Raw_Packet(), test.packet_size) != 0):
        print ("\nError sending the packet: %s\n" % pcap_geterr(fp))
        sys.exit(3)


    elapsed = time.time() - now
    if elapsed < 0.02 and elapsed > 0:
        time.sleep(0.02 - elapsed)

    pcap_close(fp)

Note: I would like to get an array of hex values representing each byte