Requests library fetch timeout: Requests timeout setting

When internet requests get stuck at a snail's pace? Try this first aid kit

When you are crawling data with Python, you must have encountered the situation that the web page is dead and can't be loaded. It's like waiting for takeout until you're starving and the program is stuck there. At this timeAdd a countdown to the requestIt's especially critical - if you don't respond after a specified time, just pinch it off and save your life.

import requests

 Simple and brute force: set a 5 second wait globally
response = requests.get('https://例子.com', timeout=5)

 Fine-grained: 3 seconds for connecting + 10 seconds for reading
response = requests.get('https://例子.com', timeout=(3, 10))

Putting double insurance on web requests

Just setting a timeout is not robust enough, especially if you need toLarge number of high-frequency visitsThe time of the day. This is the time to ask out the proxy IP this magic weapon. It's like driving on the highway, encountering traffic jams and immediately switching to alternate routes.

Take us.ipipgoThe service of a chestnut:

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

try.
    response = requests.get(
        'https://目标网站.com',
        timeout=8,
        proxies=proxies
    )
except requests.exceptions.Timeout:
    Timeout. print("Oops, this request timed out, try again on a different line!")

Don't step on the three main potholes of timeout settings

Newbies often fall head over heels in these areas:

interactive question-and-answer session

Q: How long is the most appropriate timeout setting?
A: 3-5 seconds is enough for ordinary websites, and important business can be put into 10 seconds. With ipipgo's dynamic proxy can be shortened to 2-3 seconds, after all, their line quality is more top.

Q: What should I do if my proxy IP suddenly fails?
A: It is recommended to use ipipgo's smart switching package, their API can automatically change IP. remember to add the weight test mechanism in the code, like this:

from requests.adapters import HTTPAdapter

session = requests.Session()
session.mount('http://', HTTPAdapter(max_retries=3))
session.mount('https://', HTTPAdapter(max_retries=3))

Q: What should I be aware of when using proxy and timeout at the same time?
A: Timeout time should be left enough, especially when using offshore proxies. ipipgo's domestic transit node responds faster and is suitable for scenarios that require high speed.

Say something from the heart.

Reptilizing is like driving a drop.route planner(proxy IP) andtime management(Timeout settings) have to be caught. Having used so many proxy services, ipipgo really hits the mark in the responsiveness department. Theirpay per volumeThe model is especially friendly to small and medium-sized programs that don't have to be kidnapped by monthly packages.

Finally remind the novice: do not save the time to set the timeout time, now spend 5 minutes more debugging, the future can save 5 hours to check the bugs. encounter the case of shells, hurry up on the ipipgo grips a trial package, the effect is immediately visible.