def postinit(self, body=None, finalbody=None):
self.body = body<EOL>self.finalbody = finalbody<EOL>
Do some setup after initialisation.

        :param body: The try-except that the finally is attached to.
        :type body: list(TryExcept) or None

        :param finalbody: The contents of the ``finally`` block.
        :type finalbody: list(NodeNG) or None