#14037: plot of piecewise defined function raises UnboundLocalError
------------------------+---------------------------------------------------
Reporter: slabbe | Owner: jason, was
Type: defect | Status: new
Priority: major | Milestone: sage-5.7
Component: graphics | Keywords:
Work issues: | Report Upstream: N/A
Reviewers: | Authors:
Merged in: | Dependencies:
Stopgaps: |
------------------------+---------------------------------------------------
This was reported to me by Mathieu Roux:
{{{
sage: f = piecewise([[(0,1),1],[(1,2),x-1]],x)
sage: plot(f,0,2)
verbose 0 (575: plot.py, plot) there were 4 extra arguments (besides
<sage.ext.fast_eval.FastDoubleFunc object at 0xb912618>)
---------------------------------------------------------------------------
UnboundLocalError Traceback (most recent call
last)
...
/Users/slabbe/Applications/sage-5.6.rc0/local/lib/python2.7/site-
packages/sage/plot/plot.pyc in plot(funcs, *args, **kwds)
1117 sage.misc.misc.verbose("there were %s extra arguments
(besides %s)" % (n, funcs), level=0)
1118
-> 1119 G._set_extra_kwds(G_kwds)
1120 if do_show:
1121 G.show()
UnboundLocalError: local variable 'G' referenced before assignment
}}}
It seems related to a problem cited on
[https://groups.google.com/forum/?fromgroups=#!topic/sage-
support/920l9d7covs sage-support] in 2008.
Note that the following works:
{{{
sage: f.plot()
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14037>
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?hl=en.
For more options, visit https://groups.google.com/groups/opt_out.
