for j in practice_dataset_pateint.itertuples():
            for i in practice_set.itertuples():
               #print(i[1],i[7],i[8])
                if j[1]==i[1]:
                  a=i[7]
                  b=i[8]
                  location=practice_dataset_pateint.columns.get_loc(a)
                  j[location]=i[8]
practice_dataset_pateint