[Nipy-devel] help with attributes

[Jonathan Taylor]

hi all,

need some help with attributes error message: i tried attached pca.py 
(in lib/neuroimaging/statistics) example and got the following error:

thanks,

jonathan

--------------------
Traceback (most recent call last):
  File "pca.py", line 177, in ?
    a = p.components(which=[0,2,3])
  File "pca.py", line 109, in components
    outgrid = self.image.grid.subgrid(0)
  File 
"/home/jtaylo/python/lib/python2.4/site-packages/neuroimaging/fmri/__init__.py", 
line 99, in subgrid
    _grid.labelset = self.labelset
  File "/home/jtaylo/python/lib/python2.4/site-packages/attributes.py", 
line 256, in set
    self.validate(value)
  File "/home/jtaylo/python/lib/python2.4/site-packages/attributes.py", 
line 211, in validate
    if not self.isvalid(value): raise ProtocolOmission(
protocols.ProtocolOmission: attribute labelset implements (<class 
protocols.Sequence at 0xb6ac62fc>,), value set([]) of type <type 'set'> 
does not implement: ('__getitem__', '__getslice__')

-----------------------

p.s. does attribute offer the same thing traits does? if yes, should we 
be using both? i am kind of used to traits by now...

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Jonathan Taylor                           Tel:   650.723.9230
Dept. of Statistics                       Fax:   650.725.8977
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