@staticmethod
    def _make_label(value):
        letter = ['f','g','h','i','j','k','l','m','n','o','p','q','r','s',
                  't','u','v','w','x','y','z','a','b','c','d','e'][value-1]
        num = int(value) // 26
        if num > 0:
            return letter + str(num)
        else:
            return letter
Create a new timestamp column on the table.
dataset/ETHPy150Open nltk/nltk/nltk/sem/lfg.py/FStructure._make_label--crossover with--dataset/ETHPy150Open sdispater/orator/orator/schema/blueprint.py/Blueprint.timestamp