How to use Raspberry Pi scan bluetooth devices All In One

$ sudo pip3 install pybluez

#!/usr/bin/env python3
# coding: utf8

from time import sleep
import bluetooth

try:
  nearby_devices = bluetooth.discover_devices(lookup_names=True)
  print("Found {} devices.".format(len(nearby_devices)))
  for addr, name in nearby_devices:
    print("address = {}, name = {}".format(addr, name))
except KeyboardInterrupt:
  print("Ctrl + C ✅")
finally:
  sleep(1)
  print("clear ✅")

# bluetooth low energy scan
from bluetooth.ble import DiscoveryService

service = DiscoveryService()
devices = service.discover(2)

for address, name in devices.items():
    print("name: {}, address: {}".format(name, address))

#!/usr/bin/env python3

import bluetooth

def scan():
    print("Scanning for bluetooth devices:")
    devices = bluetooth.discover_devices(lookup_names = True, lookup_class = True)
    number_of_devices = len(devices)
    print(number_of_devices,"devices found")
    for addr, name, device_class in devices:
        print("\n")
        print("Device:")
        print("Device Name: %s" % (name))
        print("Device MAC Address: %s" % (addr))
        print("Device Class: %s" % (device_class))
        print("\n")
    return

from bluetooth import *

print "performing inquiry..."

nearby_devices = discover_devices(lookup_names = True)

print "found %d devices" % len(nearby_devices)

for name, addr in nearby_devices:
     print " %s - %s" % (addr, name)