def __init__(self, _factory=message.Message):
        self._factory = _factory
        self._input = BufferedSubFile()
        self._msgstack = []
        self._parse = self._parsegen().next
        self._cur = None
        self._last = None
        self._headersonly = False

    # Non-public interface for supporting Parser's headersonly flag
Adds elements to the listview tree.
dataset/ETHPy150Open babble/babble/include/jython/Lib/email/feedparser.py/FeedParser.__init__--crossover with--dataset/ETHPy150Open Morgawr/gogonlinux/gog_utils/gog_gui.py/UpdateWindow.create_list_data