import requests
from lxml import etree
import re
import pymysql
import time

conn = pymysql.connect(host='localhost',user='root',passwd='123456',db='mydb',port=3306,charset='urf8')
cursor = conn.cursor()

headers = { 'User-Agent':'Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0)' }

def get_movie_url(url):
html = requests.get(url,headers=headers)
selector = etree.HTML(html.text)
movie_hrefs = selector.xpath('//div[@class="hd"]/a/@href')
for movie_href in movie_hrefs:
get_movie_info(movie_href)

def get_movie_info(url):
html = requests.get(url,headers=headers)
selector = etree.HTML(html.text)
try:
name = selector.xpath('//*[@id="content"]/h1/span[1]/text()')[0]
director = selector.xpath('//*[@id="info"]/span[1]/span[2]/a/text()')[0]
actors = selector.xpath('//*[@id="info"]/span[3]/span[2]')[0]
actor = actors.xpath('string(.)')
style = re.findall('<span property="v:genre">(.*?)</span>',html.text,re.S)[0]
country = re.findall('<span class="pl">制片国家/地区:</span>(.*?)<br/>',html.text,re.S)[0]
release_time = re.findall('上映时间:</span>.*?>(.*?)</span>',html.text,re.S)[0]
time = re.findall('片长:</span>.*?>(.*?)</span>',html.text,re.S)[0]
score = selector.xpath('//*[@id="interest_sect"]/div[1]/div[2]/strong/text()')[0]
cursor.execute("insert into doubanmovie (name,director,actor,style,country,release_time,time,score)values(%s,%s,%s,%s,%s,%s,%s,%s)"(str(name),str(director),str(actor),str(style,str(country),str(release_time),str(time),str(score))))
except IndexError:
pass

if __name__ =='__main__':
urls = ['https://movie.douban.com/top250?strart={}'.format(str(i)) for i in range(0,250,25)]
for url in urls:
get_movie_url(url)
time.sleep(2)
conn.commit()
问题：无法连接数据库 无法检测代码运行