AttributeError                            Traceback (most recent call last)
<ipython-input-6-c80da766c4bb> in <module>
     17     pyplot.ylabel("conductance [e^2/h]")
     18     pyplot.show()
---> 19 solving(model.tokwant())

<ipython-input-6-c80da766c4bb> in solving(sys)
      7         energy = ie * 0.01
      8         # compute the scattering matrix at a given energy
----> 9         smatrix = kwant.greens_function(sys, energy,check_hermiticity=False)
     10         # compute the transmission probability from lead 0 to
     11         # lead 1

~/Downloads/112358/lib/python3.7/site-packages/kwant/_common.py in inner(*args, **kwargs)
     70             if sig.bind(*args, **kwargs).arguments.get(parameter_name):
     71                 warn()
---> 72             return f(*args, **kwargs)
     73 
     74         return inner

~/Downloads/112358/lib/python3.7/site-packages/kwant/solvers/common.py in greens_function(self, sys, energy, args, out_leads, in_leads, check_hermiticity, params)
    485         rhs = sp.bmat([[i for i in linsys.rhs if i.shape[1]]],
    486                       format=self.rhsformat)
--> 487         flhs = self._factorized(linsys.lhs)
    488         data = self._solve_linear_sys(flhs, rhs, kept_vars)
    489 

~/Downloads/112358/lib/python3.7/site-packages/kwant/solvers/mumps.py in _factorized(self, a)
    102     def _factorized(self, a):
    103         inst = mumps.MUMPSContext()
--> 104         inst.factor(a, ordering=self.ordering)
    105         return inst
    106 

~/Downloads/112358/lib/python3.7/site-packages/kwant/linalg/mumps.py in factor(self, a, ordering, ooc, pivot_tol, reuse_analysis, overwrite_a)
    318                                                          row, col, data)
    319         else:
--> 320             self.analyze(a, ordering=ordering, overwrite_a=overwrite_a)
    321 
    322         self.mumps_instance.icntl[22] = 1 if ooc else 0

~/Downloads/112358/lib/python3.7/site-packages/kwant/linalg/mumps.py in analyze(self, a, ordering, overwrite_a)
    227 
    228         if dtype != self.dtype:
--> 229             self.mumps_instance = getattr(_mumps, dtype+"mumps")(self.verbose)
    230             self.dtype = dtype
    231 

AttributeError: module 'kwant.linalg._mumps' has no attribute 'dmumps'


Kindly guide me so I can overcome this error.


Thank You,

Regards,

Bhavya Bhardwaj