159Re: [aima-talk] csp.py
- May 22, 2003
>>> csp.solve_zebra()House 1
Traceback (most recent call last):
File "<pyshell#0>", line 1, in ?
File "C:\Documents and Settings\Brandon
Corfman\Desktop\PyCode\csp.py", line 431, in solve_zebra
for (var, val) in ans.items():
AttributeError: 'NoneType' object has no attribute 'items'
It definitely takes several minutes to get this error message -- I think
about 20-30 minutes on my P4. It looks like it's ending without finding
Thanks for the new code; I'll give it a try.
Peter Norvig wrote:
>The zebra problem is difficult; you may have run out of memory. What
>error msg did you get? You should get an answer eventually, but it
>should take several minutes.
>I added some example calls for N-Queens and the map problems.
>I also moved the code to http://aima.cs.berkeley.edu/python
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