Get the number of search results on Bing search

get_bing_search_results_number.py

# -*- coding: utf-8 -*-
# based on https://gist.github.com/o-tomox/6649758#file-bing_api-py

import urllib
import requests
import json

class Bing(object):
    def __init__(self, key):
        self.api_key = key

    def get_num_results(self, query):
        # Base URL
        url = 'https://api.datamarket.azure.com/Data.ashx/Bing/Search/v1/Composite?'

        # refer to: https://datamarket.azure.com/dataset/bing/search#schema
        params = {
            "Query": "'{0}'".format(query),
            "Sources": "'web+image+video+news+spell'", 
            "Market": "'en-US'"
        }
        
        request_url = url + urllib.urlencode(params) + "&$format=json"
        response = requests.get(request_url, 
                                auth=(self.api_key, self.api_key), 
                                headers={'User-Agent': 'My API Robot'})        
        response = response.json()
        
        # TODO: better error handling
        try:
            total_num = response["d"]["results"][0]["WebTotal"] 
            return total_num
        except:
            return 0

if __name__ == '__main__':
    key = "<API Key>"
    q = "pen pineapple apple pen"
    bing = Bing(key)
    num_results = bing.web_search(q)