问'str' object cannot be interpreted as an integer？

import urllib.request import re url="https://cn.chinadaily.com.cn/" count = 0 def download(src): global count try: resp =urllib.request.urlopen(src) data = resp.read() p = src.rfind("/") fileName=src[p+1:] fobj = open("download\\"+fileName,"wb") fobj.write(data) fobj.close() print("downloaded",fileName) count = count+1 except Exception as err: print(err) def getHtml(): html = "" try: resp = urllib.request.urlopen(url) data = resp.read() html = data.decode() except Exception as err: print(err) return html try: html = getHtml().lower() reg = r"<img.+src\s*=\s*" m = re.search(reg,html) while m: a = m.end() s = html[a:] m = re.search(r">",s) if m: b = m.start() html = s[m.end():] s = s[:b] m.re.search(r"[\',\"][a-z,0-9,\.,-,_,/]+(.jpg|.png|.jpeg)[\',\"]",s) if m: src =s[1:m.end()-1] src = urllib.request.urljion(url,src) print(src) download(src) m = re.search(reg,html) print("total",count,"images") except Exception as err: print(err)

'str' object cannot be interpreted as an integer