使用 Selenium 和 Python 从动态网站获取元素值

Question

I'm trying to get the value of the vending price of AMZN index market directly from the trading platform plus500, the value changes continuosly so I have to use selenium. The code I'm using is this one:

driver.get("https://app.plus500.com/trade/amazon")
# get AMZN vending price
Sell = driver.find_elements(By.CLASS_NAME, value="sell")
print(Sell)

The html from the source is this:

<div class="sell" data-no-trading="false" id="_win_plus500_bind873" data-show="true">126.28</div>

I need to scrape the value (in this case 126,28) every time it changes. If it is needed I created a dummy Plus500 account for you: username "myrandomcode@gmail.com" password: "MyRandomCode87".

Answer 1

To extract the value of the vending price of AMZN index market directly from the trading platform plus500 ie the text 126.28 as the element is a dynamic element you need to induce WebDriverWait for the visibility_of_element_located() and you can use either of the following locator strategies :

• Using XPATH :

   print(WebDriverWait(driver, 20).until(EC.visibility_of_element_located((By.XPATH, "//div[starts-with(@class, 'section-table-body')]//span[text()='Amazon']//following::div[2]"))).text)

• Note : You have to add the following imports:

   from selenium.webdriver.support.ui import WebDriverWait from selenium.webdriver.common.by import By from selenium.webdriver.support import expected_conditions as EC

You can find a relevant discussion in How to retrieve the text of a WebElement using Selenium - Python