A python crawler

Line 8 2020-11-13 01:23:16
python crawler


That's it. python Reptiles

It's like climbing a picture
Source site link :http://www.setuw.com
Use python To write , Used threadpool Such as the library , download .
Environmental Science :python 3 , win10 , Tested in raspberry pie environment

Website element structure

 Insert picture description here
 Insert picture description here

Code

# -*- coding: utf-8 -*
from concurrent.futures import ThreadPoolExecutor
import urllib.request
import _thread
import json
import threadpool
from time import sleep
from bs4 import BeautifulSoup
import os
import random
maxThreadCount = 8
available_thread = 8
baseDomain="http://www.setuw.com"
intrance = "http://www.setuw.com/tag/rosi/"
# Website category corresponding to the directory
tags = [ "/tag/rosi/", "/tag/tuigirl/" , "/tag/ugirls/" ,
"/tag/xiuren/" , "/tag/disi/" , "/tag/dongman/" , "/tag/xinggan/" ,
"/tag/qingchun/" , "/tag/youhuo/" , "/tag/mote/" , "/tag/chemo/" ,
"/tag/tiyu/" , "/tag/zuqiubaobei/" , "/meinv/liuyan/"
]
types = ["ROSI" , " Push girl " , " Hugo " , " Show people " ,
" DISI " , " Comic " , " sexy " , " Pure " , " Temptation " , " model " , " auto salon girls " , " sports " , " football " , " Liu Yan " ]
typeSize = len(types)
path = ""
header = {
"User-Agent":'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.116 Safari/537.36',
'Accept': '*/*',
'Accept-Language': 'en-US,en;q=0.8',
'Cache-Control': 'max-age=0',
'Connection': 'keep-alive'
}
def Download(argv1):
url = argv1.split("#")[0]
title = argv1.split("#")[1]
name = argv1.split("#")[2]
#print("URl is " , url, " , title is " , title , " , name is " , name)
print("Download processing:" , argv1.split("#")[3])
apath = path+"/" + title + "/"
#print(apath)
if not os.path.exists(apath): # Determine whether the path exists in the system , Create if it does not exist
os.makedirs(apath)
urllib.request.urlretrieve( url, '{0}{1}.jpg'.format(apath, name)) # , Download the image and save it locally
return
def run(targetUrl,title):
global available_thread
print("downloading " + title)
req = urllib.request.Request(url=targetUrl,headers=header)
response = urllib.request.urlopen(req)#1111111 there req Can be seen as a more advanced URL
html = response.read().decode('utf-8','ignore')
soup = BeautifulSoup(html, 'html.parser')
imgs = soup.find_all('img')
size = len(imgs)
resules = 1
with ThreadPoolExecutor(maxThreadCount) as pool:
for i in range(2,size-16):
# It has been proved that , The page grabs img,2 To size-6 For Atlas pictures
data = imgs[i]["datas"]
all = data.split("'")
'''
parameter list : Download link , The title of the atlas , Picture name , Atlas download progress
'''
argv ={ all[len(all) - 2] + "#" + title + "#" + all[len(all) - 2].split(".")[1]+str(i) + "#" + str(i-1) + "/" + str(size-18) }
results = pool.map(Download,(argv)) # Use map Add thread to thread pool
print(title , " download successfull;")
return
if __name__ == '__main__':
''' Custom download path . If input ., Download to the current directory , Skip and download to /home/hdd/picDl/( This is me )
Your own hard disk mount point ... Customizable )'''
input1 = input("input a folder(. as ./ , none as /home/hdd/picDl/):")
if input1==".":
path = "./"
elif input1=="":
path = "/home/hdd/picDl/"
else:
path = input1
print("Path seted to " + path)
# Select a download category . At the top of the website is , I found it by hand , A timed
for i in range(0,len(types)-1):
print("| " + str(i)+ " | " + types[i] + " | ")
print("select a type to download , ")
index = input(" or input nothing to download index page:")
if index == "":
intrance = intrance
else:
index1 = int(index)
if index1 < len(types)-1 and index1 > 0 :
intrance = baseDomain + tags[index1]
else:
print("something wrong , setting download tartget as default")
intrance = intrance
print( intrance + " is going to download.")
'''
Custom download thread number . Be careful , Each thread in the function is used to download an image ,
So it can only be said that multiple images are downloaded in parallel .
'''
maxThreadCount_ = input("input a number if you want to modify default thread number:")
if maxThreadCount_ == "" :
print("using default number:" , maxThreadCount)
else :
print("Modified number to:" , maxThreadCount_)
maxThreadCount = int(maxThreadCount_)
req = urllib.request.Request(url=intrance,headers=header)
response = urllib.request.urlopen(req)
html = response.read().decode('utf-8','ignore')
# decode Get this page html Source code
soup = BeautifulSoup(html, 'html.parser')
Divs = soup.find_all('a',attrs={'class':'a1' })
for div in Divs:
if div["href"] is None:
print(" There are no atlas ")
# return
elif div['href'] is None or div['href']=="": # There are links , But it is Empty link
print(" There is no connection in the atlas ")
# return
else:
targetUrl= baseDomain + div['href']
title=div["title"]
print(" Downloading set of pictures :" + title)
run(targetUrl,title)

shortcoming ( Improving direction ):

  1. At present, only the first page of the category is downloaded
  2. Can't save download progress .
  3. It's gone .. Welcome criticism and correction
版权声明
本文为[Line 8]所创,转载请带上原文链接,感谢

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