BeautifulSoup Get Text: Web Page Text Extraction

When crawlers meet validation pop-ups? Try this combo

The other day, Wang was using BeautifulSoup to write a crawler, and suddenly found that the target site popped up a CAPTCHA - well, the IP was blocked again. In this case, we do data crawling know, this time the proxy IP on the scene to save the day. Today we will nag how to make BeautifulSoup and proxy IP with work.

Basic operation: three lines of code to deal with text capture

The first paragraph of the most basic BeautifulSoup operation, to the brother who just started to make a sample:

import requests
from bs4 import BeautifulSoup

resp = requests.get('http://目标网站')
soup = BeautifulSoup(resp.text, 'html.parser')
print(soup.get_text())

The code looks good, but it's a real pain in the ass to run. Why? Now the site is fine, even request three or five times immediately give you IP black.

Putting an invisibility cloak on a reptile

This is when you need a proxy IP to take cover. Take ipipgo's service as a chestnut, their dynamic IP pool is big enough and easy to switch. Change the code plus proxy:

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

resp = requests.get('http://目标网站', proxies=proxies, timeout=10)

focus onHere to use the exclusive tunnel address provided by ipipgo, other channels may not be stable. Each of their proxy IP can be used for up to 5 minutes, automatic switching this point is particularly worry-free.

Counter Climbing Countermeasures Tips

Don't panic when it comes to these situations:
- Suddenly return to a blank page → Change IP
- Jump to CAPTCHA page → reduce request frequency
- Return 403 error → Check request header settings

This configuration combination is recommended:

White Frequently Asked Questions

Q: Used a proxy or got blocked?
A: Check two things: 1. Whether the proxy is effective 2. Whether the request header is with browser fingerprints

Q: How does ipipgo charge?
A: They have both hourly and traffic billing, and new signups get 1G of experience traffic, which is enough for testing.

Q: What should I do if the extracted text is garbled?
A: Specify the encoding in BeautifulSoup:
soup = BeautifulSoup(resp.content, 'html.parser', from_encoding='gb18030')

Upgrade Play: Distributed Acquisition Architecture

This pairing is recommended when large-scale collection is required:
1. Master node scheduling tasks
2. Multiple crawler nodes get different exit IPs through ipipgo
3. Real-time database update of available proxy IPs
4. Automatic reassignment of failed tasks to new nodes

Finally, the proxy IP is not a panacea, with the request frequency control, request header camouflage these means. Recently found ipipgo background can directly see the survival time of each IP, this feature is quite helpful for debugging. We have what encountered in the actual combat of strange problems, welcome to exchange ~!