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When encountering problems with aria-expanded="true"/aria-expanded="false" while scraping with Selenium in Python, you can try the following steps:

1. Use the Selenium WebDriver's execute_script() method to execute a JavaScript code that will set the aria-expanded attribute to true or false.

2. Check if the problem is caused by the page loading dynamically after the initial load. In this case, you can use the WebDriverWait class to wait for the element to be present and visible before interacting with it.

3. If the issue persists, try using a more specific CSS selector or XPath expression to target the element that is causing the problem.

4. Consider using an alternative approach such as using the Requests library to scrape the data from the page's HTML source directly, or using an API if one is available.

5. As a last resort, you could consider contacting the website's owner or administrator to request permission for scraping the data. It's always a good practice to obtain explicit permission before scraping any website.