dolfin team mailing list archive

[Ali Mesforush <mesforus@xxxxxxxxxxx>]

Hello
I installed fenics on my ubuntu 8.10. It worked good for 3 days, but 
today when I tried to run demo.py I got

ali@ali-laptop:~/Desktop/Python$ python demo.py
Traceback (most recent call last):
File "demo.py", line 1, in <module>
  from dolfin import *
File "/usr/lib/python2.5/site-packages/dolfin/__init__.py", line 21, in 
<module>
  from ffc import *
File "/usr/lib/python2.5/site-packages/ffc/__init__.py", line 23, in 
<module>
  from ffc.compiler.uflcompiler import compile as compile_ufl
File "/usr/lib/python2.5/site-packages/ffc/compiler/uflcompiler.py", 
line 30, in <module>
  from ufl.algorithms import validate_form, 
extract_max_quadrature_element_degree, estimate_max_polynomial_degree
ImportError: cannot import name extract_max_quadrature_element_degree
ali@ali-laptop:~/Desktop/Python$

What is thid and how can I solve it?
Regards
/Ali