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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 clean_comment(self):
 """ If COMMENTS_ALLOW_PROFANITIES is False, check that the comment doesn't contain anything in PROFANITIES_LIST. """

        comment = self.cleaned_data["text"]
        if settings.COMMENTS_ALLOW_PROFANITIES is False:
            bad_words = [w for w in settings.PROFANITIES_LIST if w in comment.lower()]
            if bad_words:
                raise forms.ValidationError(ungettext(
                    "Watch your mouth! The word %s is not allowed here.",
                    "Watch your mouth! The words %s are not allowed here.",
                    len(bad_words)) % get_text_list(
                        ['"%s%s%s"' % (i[0], '-'*(len(i)-2), i[-1])
                         for i in bad_words], ugettext('and')))
        return comment