Python proxy IP crawler framework: Python proxy crawler framework building

Hands-on face-swapping with Python crawlers

Engaged in crawlers know, now the site anti-pickpocket mechanism is more and more strict. Just like the cell doorman recognize familiar face, the site will stare at your IP hard to see. This time you need to do a crawler "face" - proxy IP pool, so that the site will never recognize your true identity.

Putting a face-changing toolkit on a crawler

Prepare the three core modules first:
1. IP Harvester: Get fresh IPs from service providers like ipipgo!
2. IP Physical Examination Center: Verify that the IP works
3. IP Dispatcher: Automatic switching of available IPs

import requests
from concurrent.futures import ThreadPoolExecutor

class IPManager.
    def __init__(self).
        self.pool = []

    def harvest IP(self):
         Here's an example using ipipgo's API
        resp = requests.get("https://api.ipipgo.com/fetch?key=你的密钥")
        self.pool = resp.json()['ips']

    def check ip(self, ip)::
        try: proxies = {'http', 'ip').
            proxies = {'http': f'http://{ip}'}
            requests.get('https://httpbin.org/ip', proxies=proxies, timeout=5)
            return True
        except.
            return False

    
        with ThreadPoolExecutor(10) as exe.
            results = exe.map(self.physical IP, self.pool)
        self.available list = [ip for ip,ok in zip(self.pool,results) if ok]

Tips for preventing chain dropping in real life

Here's an easy place to plant: IP quality detection. It is recommended to set up double authentication:
1. Basic connectivity test (like the code above)
2. Simulation testing of target websites (using robots.txt of target websites as probes)

QA First Aid Kit

Q: What should I do if I am always prompted that my IP is restricted?
A: Try ipipgo's static residential packages, this kind of IP survival time is long, suitable for long-term tasks

Q: What if I need to manage multiple crawlers at the same time?
A: Use their API with the task queue, each crawler is assigned an independent IP pool to avoid resource fights

Q: Overseas website always fails to load?
A：Enable the cross-border international private line, the actual test download speed can be increased by more than 3 times!

the right tool saves effort and leads better results

A few of ipipgo's masterpieces must be settled here:
- Dynamic IP pool automatically refreshes 24/7
- Enterprise package supports unlimited number of concurrency
- The client comes with smart switching black technology

Especially their1v1 Customized SolutionsThe last time a friend to do price crawler, they specialize in configuring a dedicated channel for e-commerce, data collection success rate directly pull to 98%. price is also real, dynamic residential packages as low as 7 more than 1G flow, cheaper than drinking milk tea.

Finally, a cold knowledge: use requests library remember to set retry policy, with ipipgo's intelligent routing, basically can say goodbye to network pumping. Specific code in their developer documentation have ready-made examples, direct copy can be used, save time!