def __init__(self, reddit_session, json_dict=None, fetch=False):
        """Construct an instance of the PRAWListing object."""
        super(PRAWListing, self).__init__(reddit_session, json_dict, fetch)

        if not self.CHILD_ATTRIBUTE:
            raise NotImplementedError('PRAWListing must be extended.')

        child_list = getattr(self, self.CHILD_ATTRIBUTE)
        for i in range(len(child_list)):
            child_list[i] = self._convert(reddit_session, child_list[i])
Construct an instance of the PRAWListing object.
rtv/packages/praw/objects.py