gistfile1.py

import struct
from socket import socket
import ssl
import binascii

payload = '{"aps":{"alert":"Hello World","sound":"chime"}}'
fmt = "!cH32sH%ds" % len(payload)
command = '\x00'
token = '<<removed>>'

msg = struct.pack(fmt, command, 32, binascii.unhexlify(token), len(payload), payload)

s = socket()
c = ssl.wrap_socket(s,
                    ssl_version=ssl.PROTOCOL_SSLv3,
                    certfile='ck.pem')
c.connect(('gateway.sandbox.push.apple.com', 2195))
c.write(msg)
c.close()