import requests
import re
from bs4 import BeautifulSoup
import urllib

url='https://www.pixiv.net/ranking.php?mode=daily'
r = requests.get(url).text

rese = re.compile(r'data-filter="thumbnail-filter lazy-image"data-src="(.+?.jpg)"data-type')
items = re.findall(rese, r)

for item in items: #源图的url
#print (item)
surl0=item.replace('c/240x480/img-master','img-original')
surl1=surl0.replace('_master1200','')
surl2=surl1.replace('jpg','png')
#print(surl2)#原图地址，记得加Referer

reference = "https://www.pixiv.net/member_illust.php?mode=medium&illust_id="
reg = r'.+/(\d+)_p0'
referID=re.findall(reg,item) #id=后面的id
for i in referID:
    RE=(reference+i)  #每张图的refererce
    #print(RE)

header = {
        "Accept-Language": "zh-CN,zh;q=0.8",
        "User-Agent": "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36"
    }
header['referer'] = RE
req = urllib.request.Request(surl2, headers=header)
res = urllib.request.urlopen(req, timeout=60) 
urllib.request.urlretrieve(req,'F:\\npp.7.5.8.bin.x64\\test\\' )

错误：
Traceback (most recent call last):
File "C:\Users\luckytown\Desktop\py\tktest.txt", line 34, in <module>
urllib.request.urlretrieve(req,'F:\npp.7.5.8.bin.x64\test\' )
File "E:\Python\lib\urllib\request.py", line 246, in urlretrieve
url_type, path = splittype(url)
File "E:\Python\lib\urllib\parse.py", line 938, in splittype
match = _typeprog.match(url)
TypeError: expected string or bytes-like object