API/Script

I want to create device groups which should read lines from text file and create a device group

Text file entries like as follows:

'{"name":"460-UNIVERSITY HALL - SIR GEORGE CURRIE HALL","parentId":150}'
'{"name":"452-AFTER SCHOOL CARE CENTRE (18 PARKWAY)","parentId":150}'
'{"name":"453-INDIAN OCEAN MARINE RESEARCH CENTRE (IOMRC)","parentId":150}'

In the code If insert

        data = '{"name":"463-UNIVERSITY HALL - B HOUSE","parentId":150}' # works

but If I insert  (where line is one line from the txt file)
        data = line    # does not work

Code details:

#!/bin/env python

import requests
import json
import hashlib
import base64
import time
import hmac

#Account Info
AccessId ='XXXXX'
AccessKey ='YYYYY'
Company = 'contoso'

#Open the txt file
with open('build.txt') as f:
    for line in f:
		#Request Info
		httpVerb ='POST'
		resourcePath = '/device/groups'
		#data = '{"name":"463-UNIVERSITY HALL - B HOUSE","parentId":150}' # works
		data = line    # does not work

		#Construct URL 
		url = 'https://'+ Company +'.logicmonitor.com/santaba/rest' + resourcePath 

		#Get current time in milliseconds
		epoch = str(int(time.time() * 1000))

		#Concatenate Request details
		requestVars = httpVerb + epoch + data + resourcePath

		#Construct signature
		#signature = base64.b64encode(hmac.new(AccessKey,msg=requestVars,digestmod=hashlib.sha256).hexdigest())
		hmac = hmac.new(AccessKey.encode(),msg=requestVars.encode(),digestmod=hashlib.sha256).hexdigest()
		signature = base64.b64encode(hmac.encode())

		#Construct headers
		#auth = 'LMv1 ' + AccessId + ':' + signature + ':' + epoch
		#headers = {'Content-Type':'application/json','Authorization':auth}
		auth = 'LMv1 ' + AccessId + ':' + signature.decode() + ':' + epoch
		headers = {'Content-Type':'application/json','Authorization':auth}

		#Make request
		response = requests.post(url, data=data, headers=headers)