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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 dframe(self):
 """ Deprecated method to convert a MultiDimensionalMapping to a pandas DataFrame. Conversion to a dataframe now only supported by specific subclasses such as UniformNdMapping types. """

        self.param.warning("The MultiDimensionalMapping.dframe method is "
                           "deprecated and should no longer be used. "
                           "Use a more specific subclass which does support "
                           "the dframe method instead, e.g. a HoloMap.")
        try:
            import pandas
        except ImportError:
            raise Exception("Cannot build a DataFrame without the pandas library.")
        labels = self.dimensions('key', True) + [self.group]
        return pandas.DataFrame(
            [dict(zip(labels, k + (v,))) for (k, v) in self.data.items()])