Installing Beautiful Soup: Python Library Configuration Guide

This is probably the most straightforward Beautiful Soup installation manual you'll ever read!

Engaged in network data collection folks know that the installation of the environment is like buying a lottery ticket - obviously according to the tutorial, there are always a few unlucky people stuck in the inexplicable link. Today we nag some real, focusing on how to match the proxy ip environment to deal with Beautiful Soup, and incidentally a reliable proxy service provider ipipgo.

Things to understand before installing an environment

Let's throw cold water on the newbie: don't rush to code! Think about three things first:① Is your Python version 3.6 or above? ② Is the network environment stable? Do you need to use proxy ip for data collection?Especially the third point, if the collection frequency is high, if you do not use the proxy ip, minutes by the target site to pull black.

 Checking the Python version (a common fallacy for newbies)
python --version
 If it says version 2.x, install python3.

Hands-on installation session

Installation is really a matter of two lines of commands, but there are a few pitfalls to be aware of:

 Regular installation (for good internet speeds)
pip install beautifulsoup4

 Install --proxy (do this if you have a good network card)
pip install --proxy http://用户名:密码@ipipgo proxy address:port beautifulsoup4

The focus here is on the proxy parameters:The format of the ipipgo home proxy address is gateway.ipipgo.ioIf you are looking for a new package, you will need to add the ports to the package. If the installer downloads as slow as a snail, add the proxy parameter quickly, and the speed will take off directly.

Configuring a Proxy in the Right Position

Here's a hidden trick:Don't write dead proxy configurations in your code!It is recommended to use environment variable management, so that it is convenient to switch agents, and the code is also safe. See this table for specific operations:

Practical case demonstration

Suppose we want to use proxy ip to capture an e-commerce site, the code is written like this:

import requests
from bs4 import BeautifulSoup

proxies = {
  'http': 'http://你的账号:密码@gateway.ipipgo.io:8888',
  'https': 'http://你的账号:密码@gateway.ipipgo.io:8888'
}

response = requests.get('destination URL', proxies=proxies)
soup = BeautifulSoup(response.text, 'html.parser')
 followed by your parsing code...

Focused Reminder:The proxy address of ipipgo should be filled with the exclusive gateway provided by them, don't be silly to use the free proxies found on the Internet, those things are in all likelihood the pit.

Beginner's Guide to Avoiding Pitfalls

These are a few error messages to memorize:

SSL error → check the proxy protocol is not https written http
407 authentication failure → account password or IP whitelist is not configured
Connection timeout → change ip ipgo other regions of the node try

QA's you might ask

Q: What should I do if I have installed it but the import reports an error?
A: 80% of the package is not installed correctly, use pip list to check if there is beautifulsoup4, note that not beautifulsoup!

Q: What should I do if my proxy ip suddenly fails to connect?
A: First use ipipgo background "node speed test" function, find a low latency. If it does not work, their customer service response speed is very fast, directly to technical support.

Q：How to solve the problem of being blocked IP when collecting?
A: That's why you need to use ipipgo's dynamic residential agent, their IP pool is updated 200,000+ per day, and with the request frequency control, you basically won't trigger the wind control.

The big truth at the end

In the end, the proxy ip is the talisman of network acquisition. I've used seven or eight service providers, and ipipgo is the most cost-effective. Especially theIntelligent Route SwitchingFunction, automatically match the fastest node, than manually change IP save a lot of trouble. Lastly, a reminder: network acquisition take it easy, don't mess up other people's websites!