python爬淘宝商品（个人测试使用，切勿用作商业用途）

框架还是一样的
先响应网页，抓取网页文字getHTMLText
然后处理网页找到目标源，这次目标是价格parsePage
最后打印到本地文printGoodsList

import requests
import os
from bs4 import BeautifulSoup
import bs4
import re

def getHTMLText(url):
    try:
        kv = {'user-agent':'Mozilla/5.0'}
        r = requests.get(url,headers = kv,timeout = 30)
        r.raise_for_status()
        r.encoding = r.apparent_encoding
        return r.text
    except:
        return ""

def parsePage(ilt,html):
    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):
    path = '你的文件地址.txt'
    tplt = "{:4}\t{:8}\t{:16}"
    try:
        if os.path.exists(path):
            with open(path,'wb') as f:
                temp = tplt.format('序号','价格','商品名称')+'\r\n'
                f.write(temp.encode('utf-8'))
                count = 0
                for g in ilt:
                    count = count + 1
                    temp = tplt.format(count,g[0],g[1])+'\r\n'
                    f.write(temp.encode('utf-8'))
                f.close()
                print('done')
    except:
        print('failed')

def main():
    goods = '书包'
    depth = 2
    start_url = 'http://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()

注意写地址的时候是//而非\
另外注意转码，ＯＫ！