spider-setup.py

def __init__(self):
    super().__init__()

    # A flag, set after post-processing is finished, to
    # avoid an infinite loop.
    self.data_submitted = False

    # The object to return for conversion to a JSON tree.
    # All the parse methods add their results to this
    # structure.
    self.sports = items.SportsInventory(categories=[])