web crawling(plus11) pass_word

# -*- coding: utf-8 -*-
import scrapy
import scrapy
from scrapy.http import Request,FormRequest
import urllib.request


class Mini1Spider(scrapy.Spider):
    name = 'mini1'
    allowed_domains = ['taobao.com']
    header = {
        "User-Agent:": "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.22 Safari/537.36 SE 2.X MetaSr 1.0"}
    '''
start_urls = ['http://taobao.com/']
'''
    def start_requests(self):
        return [Request("https://login.taobao.com/member/login.jhtml?f=top&redirectURL=https%3A%2F%2Fwww.taobao.com%2F",callback=self.parse,meta={"cookiejar":1})]
    def parse(self, response):
        captcha=response.xpath("//img[@id='captcha_image']/@src").extract()
        url="https://accounts.douban.com/login"
        if len(captcha)>0:
            print("u have a captcha")
            localpath="E:/m/mini1/captcha.png"
            urllib.request.urlretrieve(captcha[0],filename=localpath)
            print("check the pic at'E:/m/mini/captcha.png',and input the captcha here")
            captcha_value=input()

            data={
                "TPL_username":"兔子的尾巴mini",
                "TPL_password":"mini123",
                "captcha-solution":captcha_value,
                "redirectURL":"https://www.taobao.com",
            }
        else:
            print("no captcha")
            data={
                "TPL_username":"兔子的尾巴mini",
                "TPL_password":"mini123",
                "redirectURL":"https://www.taobao.com",
            }
        print("loading……")
        return [FormRequest.from_response(response,
                                              meta={"cookiejar":response.meta["cookiejar"]},
                                              headers=self.header,
                                              formdata=data,
                                              callback=self.next,
                                              )]

    def next(self,response):
        print("finished web crawling")
        title=response.xpath("/html/head/title/text()").extract()
        note=response.xpath("//div[@class='note']/text()").extract()
        print(title[0])
        print(note[0])