Python Deploying Websites: Python Website Deployment Agent Tutorials

Python website deployment meets network lag? Try this

Recently, I helped a friend deploy a Python website, and it frequently reported errors when the number of visitors came up a little. After half a day's investigation, I found that the server IP is restricted by the target website, and this time the proxy IP will come in handy. For example, if you use Flask to write a crawler to display the site, you can run it for half an hour without adding a proxy.

import requests
from flask import Flask

app = Flask(__name__)

@app.route('/')
def get_data():
    proxies = {
        "http": "http://username:password@proxy.ipipgo.io:端口",
        "https": "http://username:password@proxy.ipipgo.io:端口"
    }
    response = requests.get('destination URL', proxies=proxies)
    return response.text

Notice in the code theusername:passwordThis piece, now the regular proxy service providers are this authentication method. Before the free proxy brothers may be used to fill in the IP directly, now this trick early no longer work.

How to choose a proxy IP so as not to step on the pit

There are several types of proxies on the market, and the biggest fear of Python deployment is using the wrong type. According to my experience in these three years of stepping on the pit organized a comparison table:

Focus on the static residential agent, like we do user behavior analysis must use this. Before the dynamic agent is always recognized as anomalous traffic, change to theStatic residential proxy for ipipgoAfterward, the IP survival cycle becomes significantly longer.

Three Steps to Real-World Configuration

Here's an example of an Nginx reverse proxy to show you how to access it quickly:

location / {
    proxy_pass http://本地服务地址;
    proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header

     The key configuration is here
    resolver 8.8.8.8;
    proxy_http_version 1.1;
    proxy_set_header Host $http_host;
    proxy_pass_request_headers on; proxy_pass ; proxy_pass_request_headers_on
    proxy_pass http://代理服务地址;
}

Note that in line 7resolverConfiguration, many tutorials missed this step resulting in proxy failure. It is recommended to use Google DNS directly, which is much more stable than the carrier's own.

Frequently Asked Questions QA

Q: What should I do if my proxy IP is slow?
A: First check whether the protocol is not selected correctly, http and https do not confuse. If it is an overseas business, remember to choose ipipgo's cross-border line!

Q: How do I test if the proxy is working?
A: add a print(response.request.headers) in Python to see if there is an X-Forwarded-For field in the request headers

Q: How to choose between static and dynamic proxies?
A: need to maintain long-term session selection of static (such as payment interface debugging), ordinary data collection with dynamic more cost-effective

Why recommend ipipgo

After using so many proxy services, I finally locked ipipgo for three main reasons: first, theirTK LineIndeed stable, do cross-border e-commerce friends understand; secondly, customer service response is fast, the last two o'clock in the morning to mention the work order actually seconds back; thirdly, the flow package is flexible, unlike some platforms must be paid annually.

They recently came out with a newSERP APIQuite interesting, do SEO friends can directly tune the interface to take the search results, save yourself writing collection rules. But ordinary users with the standard package is enough, do not be confused by the fancy features.

Lastly, I would like to say that deploying a website with a proxy is not a panacea, and the key is to do a good job with the abnormal retry mechanism. It is recommended to add a proxy pool polling in the code, with ipipgo's API to dynamically replace the IP, so that it is not easy to be the target site ban.