#10963: More functorial constructions
-------------------------------------+-------------------------------------
Reporter: nthiery | Owner: stumpc5
Type: enhancement | Status: needs_work
Priority: major | Milestone:
Component: categories | Resolution:
Keywords: | Merged in:
Authors: Nicolas M. Thiéry | Reviewers: Simon King
Report Upstream: N/A | Work issues: Reduce startup time
Branch: | by 5%. Avoid "recursion depth
Dependencies: #11224, #8327, | exceeded (ignored)".
#10193, #12895, #14516, #14722, | Commit:
#13589, #14471 | Stopgaps:
-------------------------------------+-------------------------------------
Comment (by nthiery):
Replying to [comment:96 SimonKing]:
> - Your [attachment:bla.py] fails with
> {{{
> Exception RuntimeError: 'maximum recursion depth exceeded while calling
a Python object' in <sage.structure.coerce_dict.TripleDictEraser object at
0x347af68> ignored
> }}}
Yup. I should add that it produces a combination of "remove" and
"TripleDictEraser" errors; I pointed to the later because it was more
specific. Also the whole thing is very sensitive to changes: if you
change a line in bla.py you can switch from one message to the
other. My bet is that we have a recursive data structure which is a
mix of Triple dict and other weak dictionary, so depending on how deep
the recursion breaks you get one message or the other.
> Where shall one start to try and analyse the problem?
Looking at the sources of `WeakValueDictionary` to see how they work
around the recursion issue?
Cheers,
Nicolas
--
Ticket URL: <http://trac.sagemath.org/ticket/10963#comment:97>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/sage-trac.
For more options, visit https://groups.google.com/groups/opt_out.
