Python initiates GET requests: Python proxy GET requests

First, why use a proxy IP to send a request?

When we usually use Python to grab data, we often get IP blocked by websites, right? For example, if you are monitoring the price of an e-commerce store or grabbing a limited number of products, you will be blacklisted in a minute if you use your real IP to make a crazy request. At this time, the proxy IP is like wearing a cloak of invisibility, each request for a new vest, the site will not recognize you.

To give a real scenario: Xiao Wang wants to capture the inventory of a platform's goods, and he is blocked after 20 consecutive visits with his own IP. Later he usedDynamic short-acting proxies for ipipgoIt automatically switches to a different exit IP for each request, and has been running for two days straight with no problems.

II. Two methods of configuring agents

Here to the guys to demonstrate the most commonly used requests library and native urllib two ways, remember to change the proxy address in the code to their own ipipgo account to get the real agent:

 Method 1: The requests library is the least troublesome.
import requests

proxies = {
    'http': 'http://用户名:密码@proxy.ipipgo.io:31112',
    'https': 'http://用户名:密码@proxy.ipipgo.io:31112'
}

resp = requests.get('https://目标网站.com', proxies=proxies)
print(resp.text[:200]) print the first 200 characters to see the effect

 Method 2: urllib natively written (suitable for old projects)
from urllib.request import ProxyHandler, build_opener

proxy = ProxyHandler({'http': 'http://用户名:密码@proxy.ipipgo.io:31112'})
opener = build_opener(proxy)
response = opener.open('http://目标网站.com')
print(response.read().decode('utf-8'))

III. Avoiding the Pit of Proxy Configuration

Many newbies tend to fall prey to these questions (the table is more visual):

IV. Questions often asked by whites

Q: What should I do if my proxy IP is not working?
A: This situation is eighty percent of the IP is pulled by the target site, suggest:
1. Switching ipipgo'spay-per-use packageAutomatic filtering of invalid IPs
2. Add an exception retry mechanism in the code to automatically change to the next IP address.

Q: How do I choose the best value for my package?
A: Depending on the usage scenario:
- Short-term testing5 Dollar Experience Pack(100 IPs/day)
- For long-term projectsEnterprise Customized PackagesSupport for concurrency negotiation

V. Advanced skills: making the agent more stable

Name a few great tricks that have been summarized in real life:
1. IP warm-up strategy: After getting a new batch of ipipgo IPs, first request the target website with low frequency to simulate normal user behavior.
2. hybrid protocol: Pairing HTTP and HTTPS proxies to reduce feature identification
3. Intelligent Switching: automatically eliminate slow IPs according to the response time, measured to improve the efficiency of 30% collection.

Lastly, I'd like to apologize.ipipgo recently went live with real-time IP quality checking featureThis is especially useful for debugging code, as you can see the survival status of each IP in the backend. Sign up with promo codePYTHON666I can whore out 3 days of premium packages, newbies are recommended to start with this~