Python Send HTTP Requests: Python Request Proxy Configuration

The right way to open Python crawler plus proxy

Crawler buddies understand that the direct bare request minutes to be blocked IP, this time you need to find a reliable intermediary - proxy IP. we do not play false today, directly on the code to teach you how to configure the proxy in Python, by the way, Amway's own good ipipgo service.

How exactly does a proxy IP work?

To put it bluntly, it is to let your request go through a proxy server first. For example, if you go to a restaurant and order food, you originally told the chef directly, "I'll have a steak", but now you let the waiter relay your order to the chef. This way the chef doesn't know who ordered the meal.

 Requests library configuration proxy (focus on proxies parameter)
import requests

proxies = {
    'http': 'http://用户名:密码@ip address:port',
    'https': 'https://用户名:密码@ip address:port'
}

response = requests.get('destination URL', proxies=proxies, timeout=10)

Two must-learn configuration poses

Position 1: Requests library(for the uninitiated)
Just stuff the proxies dictionary directly into the request parameters, and note that http and https should be written separately. Remember to select socks5 for the protocol type when using ipipgo's TK line:

proxies = {'http': 'socks5://proxy information generated by ipipgo account'}

Position 2: urllib library(old-school but stable)
The agent processor needs to be created first, and is suitable for situations where fine-grained control is required:

from urllib.request import ProxyHandler, build_opener

proxy = ProxyHandler({'http': '117.88.176.66:3000'}) with IP provided by ipipgo
opener = build_opener(proxy)
response = opener.open('http://目标网址')

Why do you recommend ipipgo?

No polite words for the house product, just straight to the hard food:

Special mention of theirSERP API, do search engine crawling brother can directly call the ready-made interface, save yourself to deal with anti-climbing.

Common pitfalls QA

Q: The proxy configuration is successful but the request fails?
A: First check if the IP format is correct, especially with account password. If you use ipipgo client, it is recommended to use their IP detection tool to measure the connectivity first.

Q: How do I manage the need for a large number of IPs?
A: directly on their API extraction function, the code to add an IP pool rotation mechanism. The Enterprise Edition package supports 500+ IPs at the same time, remember to set the request interval.

Q: HTTPS web proxy failure?
A: It is likely to be a certificate problem, in the requests request addverify=FalseParameters can be solved temporarily. For long-term use, it is recommended to configure ipipgo's proprietary SSL certificate.

Q: What should I do if my agent is slow?
A: Priority selection of geographically proximate nodes, such as domestic business with ipipgo's provincial static IP. cross-border business directly on their international private line, the delay can be pressed to 200ms or less.

practical tip

1. In the code to add a proxy retry mechanism, encountered a failure to automatically switch IP
2. Don't use free proxies! Not only is the data not secure, nine times out of ten, it's not working.
3. to do distributed crawler, the ipipgo API into your scheduling system
4. When you need to keep the session for a long time, remember to choose their exclusive static IP package.

Finally, to be honest, the proxy configuration itself is not complicated, the key is to find a reliable service provider. The family ipipgo support hourly billing, new users can also lead the test volume (do not ask how to lead, the official website to find the entrance), first use and then buy do not step on the pit.