#16378: list_plot throws a TypeError with complex lists
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Reporter: bradlys | Owner: bradlys
Type: defect | Status: new
Priority: major | Milestone: sage-6.3
Component: packages: standard | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Changes (by kcrisman):
* author: Bradly Schlenker =>
Old description:
> Example of the issue on SageMathCloud.
>
> >L=[1+i,4+i,4+2*i,2+2*i,2+3*i,1+3*i,1+i]
>
> >list_plot(L,plotjoined=True,aspect_ratio=1)
>
> Error in lines 2-2 Traceback (most recent call last):
>
> File "/projects/70e0e4f6-0afa-4aad-
> af80-07b2d31c1ec6/.sagemathcloud/sage_server.py", line 733, in execute
> exec compile(block+'\n', '' , 'single') in namespace, locals''
> File "", line 1, in <module> File
> "/usr/local/sage/sage-6.2.rc0/local/lib/python2.7/site-
> packages/sage/misc/decorators.py", line 550, in wrapper
> return func(*args, **options)
> File "/usr/local/sage/sage-6.2.rc0/local/lib/python2.7/site-
> packages/sage/plot/plot.py", line 1810, in list_plot
> data = [(z.real(), z.imag()) for z in [CC(z[1] ) for z in data]]
>
> TypeError: 'sage.symbolic.expression.Expression' object does not support
> indexing
New description:
Example of the issue on SageMathCloud.
{{{
>L=[1+i,4+i,4+2*i,2+2*i,2+3*i,1+3*i,1+i]
>list_plot(L,plotjoined=True,aspect_ratio=1)
Error in lines 2-2 Traceback (most recent call last):
File "/projects/70e0e4f6-0afa-4aad-
af80-07b2d31c1ec6/.sagemathcloud/sage_server.py", line 733, in execute
exec compile(block+'\n', '' , 'single') in namespace, locals''
File "", line 1, in <module> File
"/usr/local/sage/sage-6.2.rc0/local/lib/python2.7/site-
packages/sage/misc/decorators.py", line 550, in wrapper
return func(*args, **options)
File "/usr/local/sage/sage-6.2.rc0/local/lib/python2.7/site-
packages/sage/plot/plot.py", line 1810, in list_plot
data = [(z.real(), z.imag()) for z in [CC(z[1] ) for z in data]]
TypeError: 'sage.symbolic.expression.Expression' object does not support
indexing
}}}
--
Comment:
Normally, `L` should be changed to `list(enumerate(L))` so that this works
fine, but apparently we are finally tripping the `pass` created when we
get a `TypeError` in this branch of `list_plot`. I'm not sure where this
happened yet, though.
--
Ticket URL: <http://trac.sagemath.org/ticket/16378#comment:4>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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