def unpackdict(table, field, keys=None, includeoriginal=False,
               samplesize=1000, missing=None):

    return UnpackDictView(table, field, keys=keys,
                          includeoriginal=includeoriginal,
                          samplesize=samplesize, missing=missing)
List of categories of a page.
dataset/ETHPy150Open alimanfoo/petl/petl/transform/unpacks.py/unpackdict--crossover with--dataset/ETHPy150Open goldsmith/Wikipedia/wikipedia/wikipedia.py/WikipediaPage.categories