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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def is_spam(request, form, url):
 """ Main entry point for spam handling - called from the comment view and page processor for ``yacms.forms``, to check if posted content is spam. Spam filters are configured via the ``SPAM_FILTERS`` setting. """

    for spam_filter_path in settings.SPAM_FILTERS:
        spam_filter = import_dotted_path(spam_filter_path)
        if spam_filter(request, form, url):
            return True