#4894: [with patch; needs review] save_session -- bug when saving %cython
functions, etc.
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Reporter: was | Owner: boothby
Type: defect | Status: new
Priority: major | Milestone: sage-3.2.3
Component: notebook | Keywords:
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I was easily able to replicate the following:
{{{
M. Yurko
to sage-support
show details 1:32 PM (1 hour ago)
Reply
I have recently been using save_session a bit, and I uncovered what I
believe is a bug. If the worksheet of the session that I'm trying to
save contains a cython function, then load_session chokes. For
example:
var1 = 1
var2 = 2
var3 = srange(1,10000)
var4 = range(1,3000)
var5 = 1234.123456
%cython
def test(double x):
return x
save_session('test_session')
and then I save and exit, and re-enter the worksheet
load_session('test_session')
and I get
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/myurko/.sage/sage_notebook/worksheets/admin/28/code/
1.py", line 6, in <module>
load_session(\u0027test_session\u0027)
File "/home/myurko/sage-3.2.1/local/lib/python2.5/site-packages/
SQLAlchemy-0.4.6-py2.5.egg/", line 1, in <module>
File "session.pyx", line 300, in sage.misc.session.load_session
(sage/misc/session.c:1403)
File "sage_object.pyx", line 477, in sage.structure.sage_object.load
(sage/structure/sage_object.c:4865)
File "sage_object.pyx", line 598, in
sage.structure.sage_object.loads (sage/structure/sage_object.c:6121)
RuntimeError: No module named
_home_myurko__sage_sage_notebook_worksheets_admin_28_code_sage8_spyx_0
invalid data stream
invalid load key, 'x'.
Unable to load pickled data.
When I ran save_session with verbose = true, I noticed that it saved
test, which according to the docstring shouldn't have happened. Does
anyone have any workarounds for this issue?
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/4894>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
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