BeautifulSoup Web Crawl: Practical Examples

The website crawling always be blocked IP, hand to teach you to use proxy ip around pit

Recently, a number of data collection buddies and I complained, said BeautifulSoup to grab a data motionless to eat the door. Last week there is an e-commerce price comparison brother, just run two days script IP was blacked out, so angry he jumped straight to his feet. Today we will nag about this matter, teach you to use the proxy ipipgo's skill to break the game.

Why does your crawler keep getting caught?

Many newbies think that parsing a web page with BeautifulSoup is all they need, but then they get caught by the security guards just as they reach for it. Here's the trickFrequency of visits too regular, just like when you wear the same clothes and go to your neighbor's house every day to borrow salt, a fool can see that something is wrong.

That's when it's time to learn what a chameleon can do.Every time I visit, I change my vest.It's a good idea to use ipipgo's proxy IP pool. It's like using ipipgo's proxy IP pool to randomly change the exit IP for each request, and the site simply can't figure out where you're coming from.

Actual equipment list

Agent Integration in Four Steps

1. Go to the ipipgo website firstGet a trial pack.I'm sorry, but 5 bucks of traffic is enough to practice.
2. Add proxy settings to the code:

proxies = {
    'http': 'http://用户名:密码@gateway.ipipgo.com:9020',
    'https': 'https://用户名:密码@gateway.ipipgo.com:9020'
}
response = requests.get(url, proxies=proxies)

3. Add to requestsRandom Waiting TimeDon't be a machine gun.
4. Regularly check if the IP is exposed with ipipgo'sIP Survival Detection Interfacehave a quick look

Common Rollover Scene Rescue

Q: Obviously hang the proxy or get banned?
A: Check if the proxy is working, use httpbin.org/ip to verify if the IP has changed. If you are using a shared package, you may have to change your IP to a dedicated one.

Q: What should I do if the agent response is slow to a snail's pace?
A: Switch the line type in the ipipgo backend, mobile IPs are usually faster than home broadband. Don't use free proxies, that shit is slower than a bicycle

Q: What should I do if I encounter an SSL certificate error?
A: Eighty percent of the proxy certificate is not installed, go to the ipipgo document center to download the latest CA certificate, requests plus verify parameter specified path

Why do you recommend ipipgo?

The IP pool for this one is really wild enough that the last time it was testedI've cut over 200 exits in half an hour, and they're all the same.. In particular, theirmixing and matching technologyThe most important thing is that you can mix the IPs of the three major carriers randomly, and the wind control system of the website is directly confused. Recently, the new dynamic residential agent, catching the mobile web page that is called a smooth.

Newbies are advised to start with the entire5 Dollar Experience PackIf you don't have enough money, you can upgrade at any time. If you do long-term projects, directly on the annual payment package can save a cell phone money, customer service can also give customized collection program.

Say something from the heart.

Engage in data collection is like playing guerrilla warfare, don't hard just website defense. Once I used ipipgo's polling mode, with the random generation of request headers, and continuously picked up an e-commerce platform for half a month without turning over. Remember.Proxy IP quality makes the difference between success and failureDon't use those garbage proxies to save a small amount of money, you won't be able to cry when you get blocked.