def print_marketUpdate(self, i):
print("<STR_LIT>" % i)<EOL>
Is called when Something happens in your market.

            This method is actually called by the backend and is
            dispatched to ``onOrderMatched``, ``onOrderPlaced`` and
            ``onUpdateCallOrder``.

            :param object i: Can be instance of ``FilledOrder``, ``Order``, or ``CallOrder``