如何解决 TypeError：“WebElement”类型的对象在 Python Selenium 中没有 len()

Question

I want to print all similar elements but keep getting an error (I am using Pycharm ).

Error:

TypeError: object of type 'WebElement' has no len()

This line is the one throwing the error: num_page_items = len(productname)

Full selenium code:

 from selenium import webdriver driver = webdriver.Chrome('/Users/reezalaq/PycharmProjects/untitled2/venv/driver/chromedriver') driver.get("https://www.blibli.com/jual/batik-pria?s=batik+pria") productname = driver.find_element_by_xpath("//div[@class='product-title']") oldprice = driver.find_element_by_css_selector("span.old-price-text").text discount = driver.find_element_by_css_selector("div.discount > span").text saleprice = driver.find_element_by_css_selector("span.new-price-text").text num_page_items = len(productname) for i in range(num_page_items): print(productname[i].text + " : " + oldprice[i].text + " : " + discount[i].text + " : " + saleprice[i].text) driver.close()

Answer 1

You are using find_element_by_xpath which find and returns the first WebElement matching the selector. You need to use find_elements_by_xpath which returns all the matching elements

Answer 2

The error says it all :

num_page_items = len(productname) 
TypeError: object of type 'WebElement' has no len()

productname is assigned the return type from driver.find_element_by_xpath("//div[@class='product-title']") , which is a WebElement and WebElement have no method as len() . len() can be invoked on a List .

Solution

As you are trying to access List items as in :

print(productname[i].text + " : " + oldprice[i].text + " : " + discount[i].text + " : " + saleprice[i].text)

So productname , oldprice , discount and saleprice needs to be of List type.

But your code reads as :

productname = driver.find_element_by_xpath("//div[@class='product-title']")
oldprice = driver.find_element_by_css_selector("span.old-price-text").text
discount = driver.find_element_by_css_selector("div.discount > span").text
saleprice = driver.find_element_by_css_selector("span.new-price-text").text 

Where productname is a WebElement and oldprice , discount , and saleprice are text . So you need to change them as a List of WebElements as follows :

productname = driver.find_elements_by_xpath("//div[@class='product-title']")
oldprice = driver.find_elements_by_css_selector("span.old-price-text")
discount = driver.find_elements_by_css_selector("div.discount > span")
saleprice = driver.find_elements_by_css_selector("span.new-price-text")