Python Web Crawling: Requests Library Efficient Capture

Crawler is counter-crawling? Teach you how to use proxy IP hard to just

Do crawl brothers understand, the most annoying is the site anti-climbing mechanism. Seal IP faster than the book, just run two minutes on the break. Today we will nag how to use Python's Requests library with theipipgo's proxy IP service to keep the crawler alive a little longer.

Proxy IP is a life-sustaining elixir for crawlers

Ordinary crawler is like running naked, the site can recognize your real IP at a glance, with a proxy IP equivalent to wearing a vest, each request for a new piece of armor, so that the site thinks it is a different person in the visit. For example, if you want to catch the price of an e-commerce company, 20 consecutive requests will be blocked. If you change the IP for each request, the success rate is directly full.

Here's a good one.ipipgoThe proxy service, his family IP pool is ridiculously large, the world 30 million + dynamic residential IP. measured, engaged in e-commerce data collection, running for 8 hours without dropping the line.

Requests library configuration

Load the library first:pip install requestsThe point is, how do you plug a proxy IP into Requests? Here's the kicker, how do you stuff proxy IPs into Requests? look at the code:

import requests

proxies = {
    'http': 'http://用户名:密码@gateway.ipipgo.com:9020',
    'https': 'http://用户名:密码@gateway.ipipgo.com:9020'
}

try.
    response = requests.get('destination URL', proxies=proxies, timeout=10)
    print(response.text)
except Exception as e.
    print(f'Done, error message: {str(e)}')

Delineate the focus:Remember to change your username and password to the one you used in theipipgoAuthentication information generated in the background. Don't set the timeout more than 15 seconds, otherwise it will be easily marked by the anti-climbing system.

The Three Axes of Anti-Anti-crawling

1. IP Rotation Strategy:Don't be stupid and use the same IP to die, it is recommended to change the IP every 5-10 requests.ipipgoAPI to get the IP dynamically, add a loop in the code and you're done!

2. Request header camouflage:User-Agent should be changed frequently, it is recommended to prepare more than 10 different browsers header

3. Request frequency control:Even if you have a proxy IP, don't waste your time. It's safer to hibernate for 1-3 seconds at random.

Frequently Asked Questions QA

Q: What should I do if my proxy IP is not working?
A: Normal phenomenon, it is recommended to useipipgoThe automatic replacement service. They have intelligent regulation of IP survival time, which saves your time and effort compared to manual replacement.

Q: What should I do if I encounter Cloudflare protection?
A: Upper Residential Proxy + Browser Fingerprinting Disguise. UseipipgoThe Chrome plug-in mode that bypasses most 5-second shields

Q: Slow as a snail in acquisition?
A: Check the proxy server location and select the node in the country where the target website is located.ipipgo支持按国家城市筛选IP，能降60%

Why ipipgo?

Having empirically compared a dozen agency providers, say three hardcore advantages:
1. Speed of responseAverage 200msDouble the speed of your peers.
2. SupportConcurrent 5000+ requestsNo stress for enterprise level projects
3. ExclusiveIP Health DetectionAutomatically rejects failed nodes

Recently they had an event where new users received 1G of traffic for free. Fill in the promo code when you sign upPYTHON666You can also get an extra 500M, so it's a waste of time to woolgather.