Selenium Waiting for Pages to Load: Selenium Wait Settings

Don't let Selenium turn into a Flash - how important is the wait mechanism?

Friends who have used Selenium know that this tool is like an acute, often in the page is not loaded when the rush to perform operations. At this time, if the proxy ip is not well coordinated, light can not locate the element, or heavy directly triggered by the site anti-climbing mechanism. We do automation is the most afraid of encountering the situation: script running suddenly stuck, turn around and look back to see the original is an element loaded a slow beat.

To give a chestnut, you use ipipgo's dynamic residential agent to visit an e-commerce site, if you do not set the wait time, the script may be in the commodity picture is not loaded when you click on the buy button. This time not only the operation failed, but also may be because of abnormal traffic by the site to pull black ip. so ah.The wait mechanism is the lubricant between the script and the proxy ip.I've got to get my head in the game.

Three Tips for Waiting Settings - Hands-on Parameter Tuning

Let's start with the least complicatedimplicitly wait, like putting a spreadsheet on a script:

driver.implicitly_wait(10) wait for up to 10 seconds

This is suitable for use with ipipgo's short-lived proxy, especially in scenarios that require frequent ip changes. But be careful, the global wait may slow down the overall speed, just like using a fishing net to fish, a net down always have to wait enough time.

Smarter.explicit waitWe can specify what elements to wait for:

from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.common.by import By

wait = WebDriverWait(driver, 15)
element = wait.until(lambda x: x.find_element(By.ID, "login-btn"))

At this time, if you use ipipgo's static long-lasting proxy, you can appropriately extend the waiting time. After all, fixed ip access speed is more stable, do not always have to worry about sudden disconnection.

The "golden combination" of proxy ip and wait time.

Here's a practical tip:Adjusting Waiting Policies Based on Agent Type. ipipgo's proxies are divided into three categories:

Here's the point:Consider the wait policy while setting up the proxy. For example, remember to reset the wait time when getting a new ip with ipipgo's API:

 Get the new ip (using ipipgo's API example here)
proxy = requests.get("https://api.ipipgo.com/getproxy?user=xxx&key=xxx").json()

 Set the proxy when creating the browser instance
options = webdriver.ChromeOptions()
options.add_argument(f'--proxy-server=http://{proxy["ip"]}:{proxy["port"]}')

 Set the wait time based on the proxy type
if proxy['type'] == 'residential'.
    driver.implicitly_wait(12)
else: driver.implicitly_wait(12)
    driver.implicitly_wait(8)

Frequently Asked Questions QA - What should I do if I encounter a pit?

Q: Why does it still report timeout even though it is set to wait?
A: 80% of the proxy ip is recognized by the target website. It is recommended to switch the proxy type in ipipgo console, choose the ip with high stash mode, and at the same time stretch the explicit waiting time to more than 20 seconds.

Q：What should I do if the page loading is fast or slow after using a proxy?
A: In this case, it is recommended to mix the two waiting methods. First use implicit wait for the bottom, and then add explicit wait for critical operations. Remember to select the "intelligent routing" function in the background of ipipgo, the system will automatically assign the fastest node.

Q: How to optimize the waiting time when I need to manage multiple proxy ip at the same time?
A: You can make a proxy pool to categorize and store different types of ip of ipipgo. Tag each ip with a response time, and dynamically adjust the wait time according to historical data when calling.

As a final rant, a good wait strategy is like an insurance policy for your scripts. Combined with ipipgo's stable proxy service, it can keep your automation scripts both less prone to getting banned and running efficiently. After all, in the constant battle of data collectionSteady as she goes, she can run.The