python proxy ip get: Python crawler proxy IP free access to methods and practical tutorials

This is probably the most grounded guide to getting proxy IPs you've ever seen!

Crawler friends should have encountered anti-climbing mechanism, this time the need for proxy IP to save the day. Although there are many free resources on the market, but the quality is uneven, today we will talk about some real, hand in hand to teach you to use Python to get a reliable proxy IP.

The three wild cards of free agency

First of all, a few do not have to spend money on the method, but have to warn you: these ways are like street food, occasionally craving is okay, long-term use may have a stomach.

1. Make website steak data publicly available:

Some sites specialize in collecting public proxies, such as certain online proxy list sites. We can use requests+BeautifulSoup directly:

"`python
import requests
from bs4 import BeautifulSoup

def scrape_proxies().
url = 'Some proxy list URL'
response = requests.get(url)
soup = BeautifulSoup(response.text, 'html.parser')
Here's an explanation based on the actual page structure
proxies = [f"{row.find('td').text}:{row.find('td').next_sibling.text} "
for row in soup.select('tr.proxy-row')]
return proxies
“`

2. API interface whoring:

Some platforms offer free APIs, such as ipipgo's free trial interface (be careful to replace it with a real interface from your own brand):

"`python
import requests

def get_ipipgo_proxies().
api_url = 'https://api.ipipgo.com/freetrial'
resp = requests.get(api_url)
return [f"{proxy['ip']}:{proxy['port']}" for proxy in resp.json ()['data']]
“`

3. Third-party pool pick-up:

Some open source libraries have built-in proxy pools, such as the extension library for a well-known crawler framework. But these IPs are like shared bikes, anyone can ride them, and they've probably been played with for a long time.

The Fatal Hardness of Free Agents

The right way to open a professional player

When it comes to stability and reliability, you still have to use a professional service like ipipgo. There are a few hardcore advantages to their residential IP pool:

1. True residential IP:

Unlike server room IPs that are easily recognized, ipipgo's IPs come from real home broadband, and behind each IP is a live Internet device, with concealment pulled straight through.

2. Family bucket of agreements:

From HTTP to SOCKS5 full support, whether you are using requests or scrapy framework, can be seamless. Here is a sample code:

"`python
proxies = {
'http': 'http://用户名:密码@gateway.ipipgo.com:端口',
'https': 'http://用户名:密码@gateway.ipipgo.com:端口'
}
response = requests.get('destination URL', proxies=proxies)
“`

3. Intelligent routing:

Automatically matching the optimal line, this feature is especially useful for scenarios that require IPs in specific areas. For example, if you want to collect data from a certain area, it can automatically assign local residential IPs.

A practical guide to avoiding the pit

Share two lessons learned in exchange for blood and tears:

1. Validation must be done

Get the proxy IP do not rush to use, first use the following detection script through the sieve:

"`python
def validate_proxy(proxy).
try.
test_url = 'http://httpbin.org/ip'
resp = requests.get(test_url, proxies={'http': proxy}, timeout=10)
return resp.json()['origin'] in proxy
except.
return False
“`

2. Rotation strategy to be flexible

Don't be silly and rotate in order, use random sampling + failure culling mechanism. Here we recommend using random.choice() + queue elimination, you can refer to the smart scheduling algorithm in the SDK provided by ipipgo.

A must-see QA session for the little guy

Q: What if the free agent always fails?
A: It is recommended to use ipipgo's mixed dialing mode, the system will automatically switch between available IPs, which is much more efficient than maintaining your own proxy pool.

Q: Why do I need a High Stash Agent?
A: Ordinary proxies expose the X-Forwarded-For header, ipipgo's high stash proxies completely hide access traces as if they were directly accessing the target website.

Q: How to detect whether the agent is effective?
A: Add a debug statement in the code to compare the returned IP address. Or directly use the real-time monitoring function provided by ipipgo console to visualize the proxy status.

The Ultimate Program Written for Reachers

If you are too lazy to toss a variety of free channels, go directly to ipipgo's API docking program. They support dynamic/static two modes, static IP is suitable for scenes that require a fixed identity, dynamic IP is suitable for large-scale collection tasks. The technical documentation is written quite understandably, docking can be done in half an hour basically.

Finally said a heartfelt words: proxy IP this thing, free always have to pay the cost of time. If it is a serious project, it is still recommended to use ipipgo such professional services, after all, the project is yellow loss of real money. Of course, their family can be free to try, first experience and then decide to always not lose.