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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 image_upload_to(self, filename):
 """ Compute the upload path for the image field. """

        now = timezone.now()
        filename, extension = os.path.splitext(filename)

        return os.path.join(
            UPLOAD_TO,
            now.strftime('%Y'),
            now.strftime('%m'),
            now.strftime('%d'),
            '%s%s' % (slugify(filename), extension))