On 5/30/07, Utpal Sarkar <[EMAIL PROTECTED]> wrote:
> When trying to use the Jones database I get an error.
> J = JonesDatabase() works correctly and creates the instance.
> J.ramified_at([2,3,5]) generates an exception, both at my local
> installation and when executing it on an online notebook at
> http://www.sagenb.org/. I copied the stack trace from the second one
Thanks for reporting this. I've rebuilt the database. To install
the new version, do
sage -i database_jones_numfield-v4.spkg
Then restart SAGE and try again.
> below.
> When looking into the code, it turns out that the call that causes the
> error is
> self.root = load(JONESDATA+ "/jones.sobj")
> where "load" is a function from the compiled library sage/structure/
> sage_object.so.
>
> Traceback (most recent call last):
> File "", line 1, in
> File "/notebooks/server/sage_notebook/worksheets/doetoe/code/5.py",
> line 4, in
> J.ramified_at([Integer(2),Integer(3),Integer(5)])
> File "/notebooks/server/", line 1, in
>
> File "/sage/local/lib/python2.5/site-packages/sage/databases/
> jones.py", line 196, in ramified_at
> Z = self.get(S, var=var)
> File "/sage/local/lib/python2.5/site-packages/sage/databases/
> jones.py", line 167, in get
> self.root = load(JONESDATA+ "/jones.sobj")
> File "sage_object.pyx", line 433, in sage_object.load
> File "sage_object.pyx", line 494, in sage_object.loads
> RuntimeError: No module named polynomial_element_generic
> invalid data stream
> invalid load key, 'x'.
> Unable to load pickled data.
>
>
> >
>
--
William Stein
Associate Professor of Mathematics
University of Washington
http://www.williamstein.org
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