distributed crawler Use scrapy_redis dupefilter to remove duplicates:
request_fingerpint() request fingerprint
Use haslib.sha1 for request.method, request.url, request.headers, request
Tag: reptile
Reptile Engineer JD
Core Competence Summary Responsible for: Multi-platform information capture, cleaning and analysis work
Requirements:
Responsible:
Requirements:
Responsible: p> Responsible
Climbing basic knowledge
一What is a crawler crawler is the process of writing a program to simulate a browser surfing the Internet, and then let it go to the Internet to grab data.
1. General crawlers: Simply spea
Reptile first body
import requests # Invoke the requests library from bs4 import BeautifulSoup # Invoke the BeautifulSoup library res =requests.get(‘https://localprod.pandateacher.com/python-manuscript/crawler-html/s
Crawler summary
Table of Contents
The Robots protocol (also called crawler protocol, crawler rules, robot protocol, etc.) is robots.txt. The website tells search engines which pages can be crawled and which
Talk about anti-reptile “policy and countermeasures”
Writing a blog is partly to allow me to quickly review the knowledge I have learned before and to organize my ideas; the other is to help other children’s shoes who have encountered similar problem
The crawler encountered some problems
After the code optimization of golang Climbing Zhenai.com, the following error was reported after running. It took half an hour to find the reason. Record it here.
The code is like this:< /p>
Reptile
requests module import requests
response=requests.get(‘https://www.baidu .com’)
print(response.text) import requests
# requests.get()
# requests.post()
# requests.head()
# Like get, pos
Reptile verification code processing and IP processing
Introduction When the relevant portal website logs in, if the user logs in more than 3 or 5 times in a row, it will be dynamically generated on the login page Verification code. Through the verifi
Reptile Related Basic Technology Paper — Multi-Thread Thread and Queu Queue Application
from queue import< span style="color: #000000;"> Queue
from threading import Thread
class mydownloader(Thread):
def __init__(self,queue):
Thread.__init__(self)
self.queue = queue
def run(