Python interpreter dies using vtkHDFWriter to write partitioned data set collection

When I run your program, it prints these errors:

vtkHDFWriter.cxx:1451   ERR| vtkHDFWriter (0x55f6c67f5fe0): Could not retrieve assembly from composite vtkPartitionedDataSetCollection
vtkHDFWriter.cxx:403    ERR| vtkHDFWriter (0x55f6c67f5fe0): Can't write vtkDataObjectTree to file:test.vtkhdf

Perhaps your PDC needs a vtkDataAssembly in order to work with vtkHDFWriter?

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