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[Bug 453206] [NEW] Errors with subspaces

 

Public bug reported:

  mesh = UnitSquare(1, 1)
  V = FunctionSpace(mesh, "CG", 1)
  Q = FunctionSpace(mesh, "CG", 1)
  M = V + Q
  print M.num_sub_spaces()

gives:

  File "form_manipulation.py", line 89, in <module>
    print M.num_sub_spaces()
  File "/home/meg/local/lib64/python2.6/site-packages/dolfin/functionspace.py", line 249, in num_sub_spaces
    return self.__ufc_element.num_sub_elements()
AttributeError: 'MixedFunctionSpace' object has no attribute '_MixedFunctionSpace__ufc_element'


Further
   
  print M.sub(0).ufl_element()
   
Traceback (most recent call last):
  File "form_manipulation.py", line 90, in <module>
    print M.sub(0).ufl_element()
AttributeError: 'SubSpace' object has no attribute 'ufl_element'

** Affects: dolfin
     Importance: Undecided
         Status: New

-- 
Errors with subspaces
https://bugs.launchpad.net/bugs/453206
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Status in DOLFIN: New

Bug description:
  mesh = UnitSquare(1, 1)
  V = FunctionSpace(mesh, "CG", 1)
  Q = FunctionSpace(mesh, "CG", 1)
  M = V + Q
  print M.num_sub_spaces()

gives:

  File "form_manipulation.py", line 89, in <module>
    print M.num_sub_spaces()
  File "/home/meg/local/lib64/python2.6/site-packages/dolfin/functionspace.py", line 249, in num_sub_spaces
    return self.__ufc_element.num_sub_elements()
AttributeError: 'MixedFunctionSpace' object has no attribute '_MixedFunctionSpace__ufc_element'


Further
   
  print M.sub(0).ufl_element()
   
Traceback (most recent call last):
  File "form_manipulation.py", line 90, in <module>
    print M.sub(0).ufl_element()
AttributeError: 'SubSpace' object has no attribute 'ufl_element'


Follow ups

References