Returns the module name of Recipe.
        This actually represents the file basename of a recipe.

def module(self):
        """
        Returns the module name of Recipe.
        This actually represents the file basename of a recipe.
        """
        if not hasattr(self, '_module'):
            self._module = re.search('[a-z]+\.([a-z]+)\.([a-z]+)', str(self.__class__), re.IGNORECASE).group(1)

        return self._module