see what people are posting to goo.gl the url shortener service

shortenerKiller.py

import random
import string
import urllib.request
import time 

class UrlGen :

    def __init__(self, max = 1000, prefix = "" , charLen = 6):
        self.max = max
        self.current = 0
        self.prefix = prefix
        self.charLen = charLen

    def __iter__(self):
        return self
        
    def __next__(self):
        if self.current > self.max :
            raise StopIteration
        self.current += 1
        return self.id_generator(self.charLen)

    def id_generator(self,size =6, chars = string.ascii_uppercase + string.ascii_lowercase + string.digits ):
        a = "".join(random.choice(chars) for _ in range(size))
        return self.prefix.join(a)

def testUrl(url) :
    try :
        urllib.request.urlopen(url,timeout=400)
        return 200
    except urllib.error.HTTPError as e :
        return e.code
    except Exception :
        return 401
getCurrTime = lambda : int (round(time.time() * 1000))
        
t1 = getCurrTime()
n = 1000 # number of urls to try
i = 0

for url in UrlGen(n,charLen=6):
    url = "https://www.goo.gl/" + url
    status = testUrl(url);
    if status == 200 :
        print( url , " works")
        i+= 1

t2 = getCurrTime()
t3 = t2 - t1

print('total time spent: ' , t3)
print('per request time spent: ' , (t3 / n) )
print('number of pages found: ' , i)