淘宝商品数据爬取

import requestsimport redef getHTMLText(url):    try:        r = requests.get(url,timeout = 30)        r.raise_for_status()        r.encoding = r.apparent_encoding        return r.text    except:        return ""    def parsePage(ilt,html):     #getHTMLText抓取下来html文件，parsePage函数在html文件中提取关键信息，ilt作为存储信息的列表    try:        plt = re.findall(r'\"view_price\"\:\"[\d\.]*\"',html)        tlt = re.findall(r'\"raw_title\"\:\".*?\"',html)        for i in range(len(plt)):            price = eval(plt[i].split(':')[1])            title = eval(tlt[i].split(':')[1])            ilt.append([price,title])    except:        print("")    def printGoodsList(ilt):          #打印出parsePage函数存储的信息    tplt = "{:4}\t{:8}\t{:16}"    #规定3个字段大小    print(tplt.format('序号','价格','商品名称'))    #先打出表头    count = 0    for g in ilt:   #再打印出parsePage函数存储的信息，信息都已经存储在ilt列表中，g[0]、g[1]表示在ilt列表中第一、二个字段        count = count + 1        print(tplt.format(count,g[0],g[1]))                def main():           #开始调用之前的函数    goods='纸尿裤'    depth=2           #抓取到第3页    start_url = 'https://s.taobao.com/search?q=' + goods    infoList = []    for i in range(depth):        try:            url = start_url + '&s' + str(44*i)            html = getHTMLText(url)            parsePage(infoList,html)        except:            continue    printGoodsList(infoList)    main()