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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 post(self, **kwargs):
 """Send a POST request to the currently loaded website's URL. The browser will automatically fill out the form. If `data` dict has been passed into ``kwargs``, the contained input values will override the automatically filled out values. Returns: `Response` object of a successful request. Raises: NoWebsiteLoadedError: If no website is currently loaded. """

        if self._url is None:
            raise NoWebsiteLoadedError('request submission requires a loaded website')

        data = kwargs.get('data', {})
        for i in self.soup('form').select('input[name]'):
            if i.get('name') not in data:
                data[i.get('name')] = i.get('value', '')
        kwargs['data'] = data

        response = self.session.post(self._url, **kwargs)
        self._url = response.url
        self._response = response
        return response