python - 如何从航类预订网站 https ://reservations. airarabia.com 获取价格信息

Question

我是 python 的新手，正在尝试学习网络抓取。按照教程，我试图从网站上提取价格，但没有打印任何内容。我的代码有什么问题？

from selenium import webdriver

chrome_path = r"C:\webdrivers\chromedriver.exe"
driver = webdriver.Chrome(chrome_path)
driver.get("https://reservations.airarabia.com/service-app/ibe/reservation.html#/fare/en/AED/AE/SHJ/KHI/07-09-2019/N/1/0/0/Y//N/N")
price = driver.find_elements_by_class_name("fare-and-services-flight-select-fare-value ng-isolate-scope")
for post in price:
        print(post.text)

Answer 1

要打印第一个 title，您必须为所需的 visibility_of_element_located() 引入 WebDriverWait，您可以使用以下任一 Locator Strategies:

• 使用 CSS_SELECTOR:

  print(WebDriverWait(driver, 20).until(EC.visibility_of_element_located((By.CSS_SELECTOR, "isa-flight-select button:first-child span.fare-and-services-flight-select-fare-value.ng-isolate-scope"))).get_attribute("innerHTML"))
  

• 使用 XPATH:

  print(WebDriverWait(driver, 20).until(EC.visibility_of_element_located((By.XPATH, "//isa-flight-select//following::button[contains(@class, 'button')]//span[@class='fare-and-services-flight-select-fare-value ng-isolate-scope']"))).text)
  

• 注意:您必须添加以下导入:

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

• 两次背靠背执行的控制台输出:

  475
  

You can find a relevant discussion in How to retrieve the title attribute through Selenium using Python?

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结尾

根据文档:

• get_attribute() 方法 获取元素的给定属性。
• text 属性返回元素的文本。
• Difference between text and innerHTML using Selenium