How to get github PR unique ID using python2/3

get_pr_id.py

#!/usr/bin/env python

"""
Get the Github Pull Request unique ID. 
Needed for posting comments, etc
"""


from __future__ import print_function
import json
# python2/3 compatibile code
try:
    # python3
    from urllib.request import Request
    from urllib.request import urlopen
except ImportError:
    # python2
    from urllib2 import Request
    from urllib2 import urlopen


query = """
{
    repository(
        owner: "raggleton",
        name: "CMSSW-CI"
    ) {
        pullRequest(number: 1) {
            id
        }
    }
}
"""

headers = {'Accept': 'application/json', 'Content-Type': 'application/json', 'Authorization' : 'bearer SECRET'}

# if using requests library
# result = requests.post("https://api.github.com/graphql",
#                        json={'query': query}, 
#                        headers=headers)
# result_dict = result.json()
# print(result_dict)
# print(type(result_dict))

# if using urllib(2)
blob = json.dumps(dict(query = query.strip())).encode('utf-8')
this_request = Request("https://api.github.com/graphql", blob, headers)
response = urlopen(this_request)
data = json.loads(response.read().decode('utf-8'))
print(data)