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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 renamecol(self, old, new):
 """ Rename column or color in-place. Method wraps:: tabular.spreadsheet.renamecol(self, old, new) """

        spreadsheet.renamecol(self,old,new)
        for x in self.coloring.keys():
            if old in self.coloring[x]:
                ind = self.coloring[x].index(old)
                self.coloring[x][ind] = new