unhashable type error on runcairns

[steve]

I tried to run runcairns.py from the demos. I get the following error:

Traceback (most recent call last):

File "runcairns.py", line 93, in ?

domain = Domain(meshname, use_cache = True, verbose = True)

File "/home/steve/ga/anuga_core/source/anuga/shallow_water/shallow_water_domain.py", line 146, in init

number_of_full_triangles=number_of_full_triangles)

File "/home/steve/ga/anuga_core/source/anuga/abstract_2d_finite_volumes/domain.py", line 86, in init

verbose=verbose)

File "/home/steve/ga/anuga_core/source/anuga/abstract_2d_finite_volumes/pmesh2domain.py", line 146, in pmesh_to_domain

verbose = verbose)

File "/home/steve/ga/anuga_core/source/anuga/caching/caching.py", line 349, in cache

T = apply(func,args,kwargs)

File "/home/steve/ga/anuga_core/source/anuga/abstract_2d_finite_volumes/pmesh2domain.py", line 179, in _pmesh_to_domain

tag_dict = pmesh_dict_to_tag_dict(mesh_dict)

File "/home/steve/ga/anuga_core/source/anuga/abstract_2d_finite_volumes/pmesh2domain.py", line 204, in pmesh_dict_to_tag_dict

sides = calc_sides(triangles)

File "/home/steve/ga/anuga_core/source/anuga/abstract_2d_finite_volumes/pmesh2domain.py", line 228, in calc_sides

sides[a,b] = (id, 2) #(id, face)

TypeError?: unhashable type

[steve]

Just tried runcairns on my PC running python 2.3. It works! On bogong with python 2.4 we get the error!