def METHOD_NAME(self):
    # Test default implementation
    testfunc(self)
    # Test Python implementation
    if quopri.b2a_qp is not None or quopri.a2b_qp is not None:
        oldencode = quopri.b2a_qp
        olddecode = quopri.a2b_qp
        try:
            quopri.b2a_qp = None
            quopri.a2b_qp = None
            testfunc(self)
        finally:
            quopri.b2a_qp = oldencode
            quopri.a2b_qp = olddecode