Proxy IP for Python Web Crawling: Python Crawler Proxy IP Integration

Hands-on teaching you to use Python + proxy IP gripping data

Brothers who engage in crawling understand that the website anti-climbing mechanism is getting more and more ruthless. Last week an e-commerce friends and I touted, they use Python to catch price data, the results just run half an hour IP was blocked to death. At this time it is time to offer a big killer -proxy IP, this thing is like putting a cloak of invisibility on a reptile.

How does proxy IP really work?

Simply put, a proxy IP is a middleman. Suppose you want to visit A website, first connect to ipipgo's proxy server, with their IP address to visit, so that the other site to see the real IP is not your machine. It's like you go to the supermarket to buy cigarettes, let your neighbor Wang help you to buy, the cashier will only remember Wang's appearance.

import requests

proxies = {
    'http': 'http://username:password@gateway.ipipgo.com:9020',
    'https': 'http://username:password@gateway.ipipgo.com:9020'
}

response = requests.get('http://目标网站.com', proxies=proxies)

The above code is the most basic proxy settings, note that you have to replace username and password with the authentication information you get in the ipipgo background. Their proxy hasDynamic Residential IPrespond in singingStatic Server Room IPTwo packages, to do data capture is recommended to choose dynamic, IP pool is larger and more secure.

Avoiding the Three Pitfalls of Proxy IPs

1. IP Survival TimeSome cheap proxies claim to have millions of IP pools, but in reality each IP can only be used for 2-3 minutes. ipipgo's exclusive proxies can do this!Stable 30-minute non-stop line, sufficient to accomplish complex data collection tasks.

2. request header leakageDon't think that just because you use a proxy that everything is fine, remember to add a random User-Agent to your code, and here's a tricky way to do it: call ipipgo'sBrowser Fingerprint Disguisefunction and save yourself the trouble of tossing it.

3. Connection timeout settingIt is recommended to add a timeout parameter to the requests, so that when you encounter a stuck proxy, you can switch in time. The actual test with ipipgo then set 5 seconds timeout enough, their response speed in the industry is considered the first tier.

Practical Tips: The Great IP Rotation Method

You have to learn to deal with a particularly strict anti-crawl system.Automatic IP switchingThe best way to do this is to use the ipipgo API to dynamically obtain proxies. We recommend using the ipipgo API to get proxies dynamically, which is even better when paired with Python's retrying module:

from retrying import retry
import random

def get_proxy().
     Call the ipipgo API to get the latest proxies.
    proxy_list = requests.get('https://api.ipipgo.com/dynamic').json()
    return random.choice(proxy_list)

@retry(stop_max_attempt_number=3)
def crawl_page(url): current_proxy = get_proxy
    current_proxy = get_proxy()
    current_proxy = get_proxy()
        return requests.get(url, proxies=current_proxy, timeout=8)
    except.
        print(f "IP {current_proxy} is down, move to the next one!")
        raise

Frequently Asked Questions QA

Q: What should I do if I use a proxy and still get blocked?
A: First check the request frequency is not too high, it is recommended to control in 3-5 seconds / times. If it does not work, contact ipipgo customer service to open theHigh Stash Agentsservice to completely hide crawler features.

Q: Slow proxy IP speed affects efficiency?
A: Turn it on in the ipipgo backendIntelligent Routingfunction, the system will automatically assign the node with the closest physical location. The actual delay can be reduced to 60% or more, than self-built proxy pool to save a lot of heartache.

Q: How do I get cost-effective billing when I need to capture a large amount of data?
A: Their housetraffic packagesIt is cheaper than billing by IP 40% and is suitable for long term stable crawling. The first registration also sends 20G test traffic, enough to run a small project to try the water.

Why ipipgo?

Finally, to be honest, I've compared seven or eight proxy services on the market, and ipipgo has three major killers:

Recently, they had aProxy IP Stress Test ToolThe tool can simulate high concurrency scenarios to detect IP quality. It is recommended to run through this tool before officially starting to engage in, than blindly on the project is much more reliable.