Connect to PineTime on ios with bluetooth on Pythonista 3

pine.py

import cb
import struct

MOTION_SERVICE = "00030000-78fc-48fe-8e23-433b3a1942d0"
HR_SERVICE = '180d'

STEP = "00030001-78fc-48fe-8e23-433b3a1942d0"
RAW_MOTION = "00030002-78fc-48fe-8e23-433b3a1942d0"
HEART_RATE = '2a37'
CHARACTERISTICS = [STEP, RAW_MOTION, HEART_RATE]

class PineHub:
	def __init__(self):
		self.peripheral = None

	def did_discover_peripheral(self, p):
		#print(p.name)
		if p.name and 'InfiniTime' in p.name and not self.peripheral:
			self.peripheral = p
			print('Connecting to PineTime...')
			cb.connect_peripheral(p)

	def did_connect_peripheral(self, p):
		print('Connected:', p.name)
		p.discover_services()

	def did_fail_to_connect_peripheral(self, p, error):
		print('Failed to connect:', error)

	def did_disconnect_peripheral(self, p, error):
		print('Disconnected, error:', error)
		self.peripheral = None

	def did_discover_services(self, p, error):
		for s in p.services:
			#print("service",s.uuid)
			if s.uuid.lower() == HR_SERVICE:
				print('Discovered heart rate service.')
				p.discover_characteristics(s)
			elif s.uuid.lower() == MOTION_SERVICE:
				print("Discovered Motion Service")
				p.discover_characteristics(s)

	def did_discover_characteristics(self, s, error):
		print('Did discover characteristics...')
		for c in s.characteristics:
			if c.uuid.lower() in CHARACTERISTICS:
				self.peripheral.set_notify_value(c, True)

	def did_update_value(self, c, error):
		#print("update", c.value, c.uuid)
		if c.uuid.lower() == HEART_RATE:
			heart_rate = struct.unpack('BB', c.value)[1]
			print('Heart rate:', heart_rate)
		elif c.uuid.lower() == STEP:
			steps = struct.unpack('I', c.value)[0]
			print("Steps", steps)
		elif c.uuid.lower() == RAW_MOTION:
			x,y,z = struct.unpack('hhh', c.value)
			print("raw motion:", x,y,z)

ph = PineHub()
cb.set_central_delegate(ph)
cb.scan_for_peripherals()

try:
	while True: pass
except KeyboardInterrupt:
	cb.reset()