I want to speed up my blog's image acquisition with BeautifulSoup4.

#!/usr/bin/env python3
# -*-coding:utf-8-*-

from bs4 import BeautifulSoup
import sys
from urllib import request
from urllib.parse import urlparse
from urllib.error import URLError, HTTPError
importos.path
importos
import time
import re 


# url function for storing destination images
  def download(url):
   url = url
   headers = {
              "User-Agent": "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:47.0) 
Gecko / 20100101 Firefox / 47.0",
                  }
print(url)
requ = request.Request(url, None, headers)
img=request.urlopen(req)
localfile=open(os.path.basename(url), 'wb')
localfile.write(img.read())
img.close()
localfile.close()


 # Save shutterstock image search results
 # access destination transition
 #par_url='http://www.keyakizaka46.com/s/k46o/diary/member/list?
site=k46o&ima=0000&ct=17'
 # imo is the number of pages ct is the number of members
 # def page_info(url):
 #     url=url+"?ima="+str("0".zfill(4)))+ 
"&page=8&rw=20&cd=member&ct=02"
#     return url

 defmain():

    for i in range (0,100):
        try:
            url="http://www.keyakizaka46.com/s/k46o/diary/member/list?ima=0000&page={}&rw=20&cd=member&ct=02".format(str(i))
        # url access
            res=request.urlopen(url)
       # Perse with beautifulsoup
          soup = BeautifulSoup(res.read(), "html.parser")
        # Find the img tag that exists on the page
        for link in group.find_all('img'):
       # Get Image URL


            img_url=link.get('src')
            if img_url.netloc=="http://www.keyakizaka46.com" and img_url.path.startswith("/images/"):
                print(img_url)

        # Download image locally
                download(img_url)
                time.sleep(10)
    except HTTPError as:
        print('Error code:', e.code)
    except URLError as:
        print('Error code:', e.code)
if__name__=='__main__':
    main()