python爬取淘宝华为手机

import re  

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

client = pymongo.MongoClient(MONGO_URL)
db = client[MONGO_DB]  

# browser = webdriver.PhantomJS(service_args=SERVER_ARGS)
browser = webdriver.Chrome()
wait = WebDriverWait(browser,10)  

# browser.set_window_size(1400,900)  

def search():
    print('SEARCHING...')
    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(KEYWORD)
        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 next_page(page_number):
    print('PAGE TURNING...', 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.presence_of_element_located((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)  

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()
    for item in items:
        products = {
            'image': item.find('.pic .img').attr('src'),
            'price': item.find('.price').text(),
            'deal': item.find('.deal-cnt').text()[:-3],
            'title': item.find('.title').text(),
            'shop': item.find('.shop').text(),
            'location': item.find('.location').text()
        }
        print(products)
        save_to_mongo(products)  

def save_to_mongo(result):
    try:
        if db[MONGO_TABLE].insert(result):
            print('SUCCESSD!', result)
    except Exception:
        print('FAILD!', result)  

def main():
    try:
        total = search()
        total = int(re.compile('(\d+)').search(total).group(1))
        # print(total)
        for i in range (2, total + 1):
            next_page(i)
    except Exception:
        print('error...')
    finally:
        browser.close()  

if __name__ == '__main__':
    main()