def __missing__(self, key):
        if self.default_factory is None:
            raise KeyError(key)
        else:
            ret = self[key] = self.default_factory(name=key)
            return ret
def test_ccode_Piecewise_deep():
    p = ccode(2*Piecewise((x, x < 1), (x**2, True)))
    s = \