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One of the advantages of using XPath is when we can’t find a suitable ID, name, or class attribute value for the element. Selenium can leverage and use powerful XPath queries to find elements on a web page. XPath is a query language used to search and locate nodes in a XML document. Return element(s) that are found by the specified XPath query. Table = driver.find_element_by_tag_name( 'tbody') entries = table.find_elements_by_tag_name( 'tr') for i in range( 4): header = entries.find_element_by_tag_name( 'th').text print(header)įind_element_by_xpath() and find_elements_by_xpath() methods: We will pass the ID attribute’s value, search, to the find_element_by_id() method: Here is an example that uses the find_element_by_id() method to find the search button.

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We can find this code if we Inspect the site and reach this element in its DOM. Here is the HTML code for the search button with an ID attribute value defined as search. Let’s try finding the search button from the example website. The find_elements_by_id() method returns all the elements that have the same ID attribute values. Return an element or a set of elements that have matching ID attribute values. Here, we will provide an overview of the various find_element_by_* and find_elements_by_* methods, with some examples of their use.įind_element_by_id() and find_elements_by_id() methods: These methods search and return a list of elements that match the supplied values. Selenium also provides various find_elements_by methods to locate multiple elements. If a matching element is found, an instance of WebElement is returned or the NoSuchElementException exception is thrown if Selenium is not able to find any element matching the search criteria. Selenium provides various find_element_by methods to find an element based on its attribute/value criteria or selector value that we supply in our script. We just need to pass the information we identify in the first step to Selenium.

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Next, we need to tell Selenium how to find a particular element or set of elements on a web page programmatically and simulate user actions on these elements. We then need to find information such as what HTML tag is used for the element, the defined attribute, and the values for the attributes and the structure of the page. In the Elements window, move the cursor over the DOM structure of the page until it reaches the desired element. Place the cursor anywhere on the webpage, right-click to open a pop-up menu, then select the Inspect option. The easiest way to identify the information is to Inspect pages using developer tools. We first need to find the selector or locator information for those elements of interest. The Terminal screen and an empty new window of Google Chrome will now be loaded.Īfter the new Google Chrome window is loaded with the URL provided, we can find the elements that we need to act on.

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The exectuable chromedriver.exe will be instantiated at this instance or upon creation of the driver object. The webdriver.Chrome() method is provided with the path of chromedriver.exe so that it creates an object of the .WebDriver class, called “driver” in this case, which will now provide access to the various attributes and properties from WebDriver. The selenium.webdriver is used to implement various browsers, in this case, Google Chrome. Selenium does not contain its own web browser it requires integration with third party browsers to run. To begin with, we import WebDriver from Selenium and set a path to chromedriver.exe. We can start by loading the example page. We have created this dynamic complete search form webpage to run our scraper against. Now that we have completed the setup steps, we can proceed. exe file on the main folder containing the codes. An application file named chromedriver.exe should appear. Unzip the downloaded chromedriver*.zip file.Download the latest stable release of ChromeDriver from this website, selecting the appropriate version for your operating system.

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Install Selenium using a third-party installer such as pip to install it from the command line via this command: pip install selenium.We will now go through the steps to set up WebDriver for Google Chrome, which is called ChromeDriver. The name WebDriver is generic - there are versions of WebDriver for all major browsers.

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1.5 How does WebDriver Interact with Browser?įor the successful implementation of browser automation using Selenium, the software WebDriver needs to be set up.

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