Free Twitter Followers Scraper

###########################################
#Twitter followers scraper by Scriptomania#
###########################################
# code is available freely, can be reused,
# forked, used commercially and whatever...
# no attribution to original author needed
#
#
# Version 1.0
# Current limitations:
# - 150 requests per hour (due to API use)
# - max 5k IDs per user (will be fixed)
#
#
# download the simplejson lib at:
# http://pypi.python.org/pypi/simplejson/

import httplib, simplejson, sys, urllib2

# Get initial set of ids
oUser = raw_input("Enter a Twitter username to scrape from: ")
oFileName = raw_input("Enter filename to write to (without extension): ")
if oUser == "":
    exit()
if oFileName == "":
    exit()
print "Getting user ids"
hOpen = httplib.HTTPSConnection("api.twitter.com")
hOpen.request("GET", "/1/followers/ids.json?cursor=-1&screen_name=" + oUser)
hResponse = hOpen.getresponse()
Buffer = hResponse.read()
oJsonString = simplejson.loads(Buffer)

# Define a group
def group(lst, n):
    for i in range(0, len(lst), n):
        val = lst[i:i+n]
        if len(val) == n:
            yield tuple(val)

# Take a batch of 100, lookup and save to file
for followers_list in group(oJsonString['ids'], 100):
    hOpen.request("GET", '/1/users/lookup.json?user_id=%s' % (urllib2.quote(','.join(map(str, followers_list)))))
    try:
        hResponse = hOpen.getresponse()
        Buffer = hResponse.read()
        details_json = simplejson.loads(Buffer)
        f = open(oFileName + ".txt", "a")
        for detail in details_json:
            print detail['screen_name']
            f.write(detail['screen_name'] + "\n")
        f.close()
    except httplib.CannotSendRequest, e:
        pass
    except httplib.BadStatusLine, e:
        pass
    except httplib.HTTPException, e:
        pass