Скачать с ютуб Resolving the NoSuchElementException Error in Python Selenium with ScraperAPI в хорошем качестве

Resolving the NoSuchElementException Error in Python Selenium with ScraperAPI

Learn how to fix the `NoSuchElementException` error when using Selenium with ScraperAPI in Python by implementing explicit waits and optimizing your code for better performance. --- This video is based on the question https://stackoverflow.com/q/71311460/ asked by the user 'LJG' ( https://stackoverflow.com/u/13983136/ ) and on the answer https://stackoverflow.com/a/71311708/ provided by the user 'Prophet' ( https://stackoverflow.com/u/3485434/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions. Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Error using ScraperAPI With Python Selenium Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l... The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license. If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com. --- Resolving the NoSuchElementException Error in Python Selenium with ScraperAPI When working with web scraping in Python using Selenium, you may encounter various issues, one of which is the NoSuchElementException error. This error can be particularly frustrating, especially when you know the element exists on the page. In this guide, we'll explore a common scenario where this error occurs while using ScraperAPI with Selenium and how to troubleshoot and resolve it effectively. The Problem: Understanding the Error In your code, you have a loop that iterates over multiple VAT numbers, searching for each one on a specific website. Here's the key issue: once you submit a form on that website, the results page is loaded, which does not include the original search input field or button you just interacted with. As a result, if you try to access the search input field again after submitting a search, Selenium raises a NoSuchElementException because it can't find that element on the current page. The code you provided was set up to fail after the first iteration due to previous page navigation. The Error Message While running the original script, you received the following error: [[See Video to Reveal this Text or Code Snippet]] This message clearly indicates that the desired element was not found, leading to your intended actions being stalled. The Solution: Steps to Resolve the Issue To fix the error and make your code work as intended, you will implement a few changes to your script. Here’s an organized breakdown of the solution: 1. Maintain a Singleton Instance of WebDriver Instead of creating a new instance of the WebDriver for each VAT number, create a single instance before the loop. This way, you can continue using the same browser session for each iteration: [[See Video to Reveal this Text or Code Snippet]] 2. Utilize Explicit Waits Instead of using hardcoded sleep() calls, which can lead to inefficiencies and timing issues, employ Selenium's Explicit Waits. This method will wait for specific conditions to be met before executing the next line of code, improving reliability: [[See Video to Reveal this Text or Code Snippet]] 3. Navigate Back to the Search Page After each search submission, you need to navigate back to the previous page to access the search input for the next VAT: [[See Video to Reveal this Text or Code Snippet]] Revised Code Here’s the complete revised code that incorporates the above suggestions: [[See Video to Reveal this Text or Code Snippet]] Conclusion By implementing these changes, you not only resolve the NoSuchElementException but also improve the efficiency of your web scraping operation. Utilizing explicit waits helps ensure that your script runs smoothly without encountering timing issues, and keeping a single instance of WebDriver streamlines your process. With these adjustments, your Selenium web scraping with ScraperAPI should run effectively without errors. Happy coding!