json - Google search with python is sporadically non-accurate and has Type Errors -

i using code found here on google search set of strings , return "expected" amount of results. here code:

for in months:     b in range(1, daysinmonth[a] + 1):          #code          if not mystring:             googlestats.append(none)         else:             try:             query = urllib.urlencode({'q': mystring})             url = 'http://ajax.googleapis.com/ajax/services/search/web?v=1.0&%s' % query             search_response = urllib.urlopen(url)             search_results = search_response.read()             results = json.loads(search_results)             data = results['responsedata']                        googlestats.append(data['cursor']['estimatedresultcount'])         except typeerror:             googlestats.append(none) x in range(0, len(googlestats)):     if googlestats[x] != none:         finalgooglestats.append(googlestats[x]) 

there 2 problems, may related. when return len(finalgooglestats), it's different every time. 1 time it's 37, it's 12. however, should more 240.

this typeerror receive when take out try/except:

typeerror: 'nonetype' object has no attribute '__getitem__' 

which occurs on line

googlestats.append(data['cursor']['estimatedresultcount']) 

so, can't figure out why number of nones in googlestats changes every time , it's never low should be. if has ideas, i'd love hear them, thanks!

update

when try print out data every think i'm searching, ton of nones , very, few actual json dictionaries. dictionaries spread out across searches, don't see pattern in none , isn't. so, problem looks has more googleapi else.

first, i'd remove try..except clause , see problem is. general practice, when try access layers of dictionary elements, use .get() method instead better control.

as demonstration of possible typeerror, here educated guess:

>>> = {} >>> a['lol'] = none >>> a['lol']['teemo'] traceback (most recent call last):   file "<stdin>", line 1, in <module> typeerror: 'nonetype' object has no attribute '__getitem__' >>>  

there ways use .get(), simple demonstration:

>>> = {} >>> b = a.get('lol')  # return none >>> if type(b) dict:  # determine type ...     print b.get('teemo')  # same technique if b indeed of type dict ...  >>>