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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 rename_regions(self, regions):
 """ Sets new names for the regions Parameters regions : list or dict In case of dict: {'old_name' : 'new_name'} with a entry for each old_name which should be renamed In case of list: List of new names in order and complete without repetition """


        if type(regions) is list:
            regions = {old: new for old, new in
                       zip(self.get_regions(), regions)}

        for df in self.get_DataFrame(data=True):
            df.rename(index=regions, columns=regions, inplace=True)

        try:
            for ext in self.get_extensions(data=True):
                for df in ext.get_DataFrame(data=True):
                    df.rename(index=regions, columns=regions, inplace=True)
        except:
            pass

        self.meta._add_modify("Changed country names")
        return self