python编写的用于测试网站访问速率的源码片段

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def Process(url,n):
    minSpan = 10.0
    maxSpan = 0.0
    sumSpan= 0.0
    over1s = 0
    for i in range(n):
        startTime = datetime.datetime.now()
        try:
            res = urllib2.urlopen(url,timeout=10)
        except:
            pass
        endTime = datetime.datetime.now()
        span = (endTime-startTime).total_seconds()
        sumSpan = sumSpan + span
        if span < minSpan:
            minSpan = span
        if span > maxSpan:
            maxSpan = span
        #超过一秒的
        if span>1:
            over1s=over1s + 1
        print(u'%s Spent :%s seconds'%(url,span))
    print(u'requested:%s times,Total Spent:%s seconds,avg:%s seconds, max:%s seconds,min:%s seconds,over 1 secnod:%s times'%(n,sumSpan,sumSpan/n,maxSpan,minSpan,over1s))
    print('n')


if __name__=='__main__':