Brief description of the requirements
(There are many good answers here, thank you all, if I get this flight, I will update it).
The detector runs along the orbit and measures several d
Category: Web Crawler
Web crawlers (also known as web spiders, web robots, in the FOAF community, and more often web chases) are programs or scripts that automatically crawl information on the World Wide Web in accordance with certain rules. Other less commonly used names are ants, automatic indexing, simulators, or worms.
Graduate reptile (three)
A paragraph:
import requests
url=”https://en.wikipedia.org/wiki/Steve_Jobs”
res=requests.get(url )
print(res.status_code)
with open(‘a.html’,’w’, encoding=’utf-8′) as f:
f.write(res.text ) S
Yi Niu cloud reptile agent sets the program of independent switching IP
1. Switch IP independently?
This mode is suitable for some businesses that require login, cookie cache processing and other crawlers that need to precisely control the timing of IP switching. Craw
Selenium uses a billionene cloud reptile agent program
from selenium import webdriver
import string
import zipfile
# Proxy server
proxyHost = “t.16yun.cn”
proxyPort = ” 31111″
# Proxy tunnel authentication information
proxyUser = “username”
pro
Using AIOHTTP to make asynchronous reptiles
Introduction
asyncio can implement single-threaded concurrent IO operations and is a commonly used asynchronous processing module in Python. Regarding the introduction of the asyncio module, the a
Correct plan for building IP pool
How to make crawlers work unimpededly, efficiently and steadily day and night without stopping is the dream of countless crawlers. Facts have once again proved that there is nothing difficult in th
One. Reptile
Contents
An application that imitates the behavior of a browser to send a request to the server and obtain the response data. Process: initiate a request === >Get data===>Analyze data===>Stor
RCURL reptile problem based on concurrent request
The following is a script to reproduce the problem I encountered when building a crawler with RCurl that performs concurrent requests.
The goal is to download thousands of websites Content for sta
Day41 – Asynchronous IO, Agreement
Contents (See the navigation in the directory bar on the right)
– 1. Preface
– 2. Five models of IO
– 3. Coroutine
– 3.1 The concept of coroutine
– 4. Gevent module
– 4.1 Basic use of geven
Temil reptile
import requests
from requests.adapters import HTTPAdapter
import re
from urllib import parse
import os
def getpiclist(kw):
headers = {
‘authority’: ‘stock.tuchong.com’,
‘method’: ‘GET’