Python Ble Distance Problem

[aleynasarcanli]

Code below, i want to make if in range, print beacon id (range 2 meters)

import blescan
import sys

import bluetooth._bluetooth as bluez

dev_id = 0
try:
	sock = bluez.hci_open_dev(dev_id)
	print "ble thread started"

except:
	print "error accessing bluetooth device..."
    	sys.exit(1)

blescan.hci_le_set_scan_parameters(sock)
blescan.hci_enable_le_scan(sock)

def calculate_accuracy(txpower, rssi):
                     if rssi == 0:
                        return -1
                     else:
                        ratio = rssi/txpower
                        if ratio < 1:
                           return ratio**10
                        else:
                           return 0.89976 * ratio**7.7095 + 0.111

while True:
	returnedList = blescan.parse_events(sock, 10)
	print "----------"
	for beacon in returnedList:
		print beacon
		beaconid = beacon.split(",")[0]
		txpower = beacon.split(",")[4]
		rssi = beacon.split(",")[5]
		calculate_accuracy(txpower, rssi)
		if calculate_accuracy < 2:
		    print beaconid