selenium+pyquery爬取淘宝

import re
from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.common.exceptions import TimeoutException 
from pyquery import PyQuery as pq

option=webdriver.ChromeOptions()
option.add_argument('--headless')
browser = webdriver.Chrome(chrome_options=option)

wait=WebDriverWait(browser, 10)

def search():
    try:
        browser.get("https://www.taobao.com")
  
        input=wait.until(
            EC.presence_of_element_located((By.CSS_SELECTOR, '#q'))
        )
        submit = wait.until(
                EC.element_to_be_clickable((By.CSS_SELECTOR,'#J_TSearchForm > div.search-button > button')))
        input.send_keys('美食')
        submit.click()
        total=wait.until(EC.presence_of_element_located((By.CSS_SELECTOR,'#mainsrp-pager > div > div > div > div.total')))
        get_products()
        return total.text
    except TimeoutException:
        return search()

def get_products():
    wait.until(EC.presence_of_element_located((By.CSS_SELECTOR,'#mainsrp-itemlist .items .item')))
    html = browser.page_source
    doc = pq(html)
    items = doc('#mainsrp-itemlist .items .item').items() #参见官网http://pyquery.readthedocs.io/en/latest/api.html
    for item in items:
        #以下使用pyquery选择器选择元素
        product = {
            'image':item.find('.pic .img').attr('src'),
            'price':item.find('.price').text().replace('\n',''),
            'deal':item.find('.deal-cnt').text()[:-3],
            'title':item.find('.title').text().replace('\n',''),
            'shop':item.find('.shop').text(),
            'location':item.find('.location').text(),
        }
        print(product)

def main():
    total=search()
    total=int(re.compile('(\d+)').search(total).group(1))
    for i in range(2,total+1):
        next_page(i)
        
    browser.close()

def next_page(page_number):
    try:
        input=wait.until(
                EC.presence_of_element_located((By.CSS_SELECTOR, '#mainsrp-pager > div > div > div > div.form > input'))
            )
        submit = wait.until(
                EC.element_to_be_clickable((By.CSS_SELECTOR,'#mainsrp-pager > div > div > div > div.form > span.btn.J_Submit')))
        input.clear()
        input.send_keys(page_number)
        submit.click()
        wait.until(EC.text_to_be_present_in_element((By.CSS_SELECTOR,'#mainsrp-pager > div > div > div > ul > li.item.active > span'),str(page_number)))
        get_products()
    except TimeoutException:
         next_page(page_number)   

if __name__=='__main__':
    main()