AttributeError: 'HtmlElement' object has no attribute 'startswith'

This error occurs when you try to use the `startswith` method on an object that does not have this method, specifically an `HtmlElement` object.

Possible solutions include:

- Check that you are using the `startswith` method on the correct object. If you are trying to use it on an HTML element, consider using a different method or property to achieve the same result.

- Convert the `HtmlElement` object to a string before using `startswith`. You can do this by calling the `tostring()` method on the object. For example:

  element = html.fromstring('<div>Hello, World!</div>')
  # convert element to a string before using startswith
  if tostring(element).startswith('<div>'):
      print('Element starts with <div>')

- Use a different parsing library that provides more methods for working with HTML elements, such as BeautifulSoup or lxml.