problemo/solverwrap.py
def Ainv(self):
        'Returns a Solver instance'

        if getattr(self, '_Ainv', None) is None:
            self._Ainv = self.Solver(self.A, 13)
            self._Ainv.run_pardiso(12)
        return self._Ainv
def Ainv(self):
        'Returns a Solver instance'

        if getattr(self, '_Ainv', None) is None:
            self._Ainv = self.Solver(self.A, 13)
            self._Ainv.run_pardiso(12)
        return self._Ainv
Returns a Solver instance