bug in return code for remove label api

test_label_api.py

#!/usr/bin/env python
# -*-coding: utf8 -*-

'''
Sample output showing bug in api

Add label, expected return code of 200 : https://developer.github.com/v3/issues/labels/#add-labels-to-an-issue
Method : POST, Endpoint : https://api.github.com/repos/foobar-test/asdf/issues/8/labels, Payload ['bug']
Response Code 200

Remove a label from an issue , expected return code of 204 : https://developer.github.com/v3/issues/labels/#remove-a-label-from-an-issue
Method : DELETE, Endpoint : https://api.github.com/repos/foobar-test/asdf/issues/8/labels/bug, Payload None
Response Code 200

'''

from urllib2 import build_opener, HTTPSHandler, Request
import json

_REPO = '' # eg. 'foobar-test/asdf'
_ISSUE = '' # eg. '8'
_TOKEN = '' # authtoken

_URL = 'https://api.github.com'
_PATH = 'repos/' + _REPO
_ISSUEPATH = 'issues/' + _ISSUE


_METHOD_MAP = dict(
        GET=lambda: 'GET',
        PUT=lambda: 'PUT',
        POST=lambda: 'POST',
        PATCH=lambda: 'PATCH',
        DELETE=lambda: 'DELETE')

def _encode_json(obj):
    '''
    Encode object as json str.
    '''
    def _dump_obj(obj):
        if isinstance(obj, dict):
            return obj
        d = dict()
        for k in dir(obj):
            if not k.startswith('_'):
                d[k] = getattr(obj, k)
        return d
    return json.dumps(obj, default=_dump_obj)

def _http(_method, url, _authorization, payload):
    data = None
    params = None
    if _method == 'POST':
        data = str(_encode_json(payload))
    opener = build_opener(HTTPSHandler)
    request = Request(url, data=data)
    request.get_method = _METHOD_MAP[_method]
    print 'Method : {0}, Endpoint : {1}, Payload {2}'.format(_method, url, payload)
    if _authorization:
        request.add_header('Authorization', _authorization)
    if _method == 'POST':
        request.add_header('Content-Type', 'application/x-www-form-urlencoded')
    try:
        response = opener.open(request, timeout=60)
        print 'Response Code %s\n' % response.getcode()
    except:
        raise

print 'Add label, expected return code of 200 : https://developer.github.com/v3/issues/labels/#add-labels-to-an-issue'
_http('POST', '/'.join([_URL, _PATH, _ISSUEPATH, 'labels']), _authorization, ['bug'])

print 'Remove a label from an issue , expected return code of 204 : https://developer.github.com/v3/issues/labels/#remove-a-label-from-an-issue'
_http('DELETE', '/'.join([_URL, _PATH, _ISSUEPATH, 'labels', 'bug']), _authorization, None)