#13842: plotting (with custom PNG viewer as per trac 11795) can silently fail
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Reporter: minshall | Owner: was
Type: defect | Status: new
Priority: minor | Milestone: sage-5.6
Component: interfaces | Keywords:
Work issues: | Report Upstream: N/A
Reviewers: | Authors:
Merged in: | Dependencies:
Stopgaps: |
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hi. with #11795 installed, misconfiguring the, e.g., PNG viewer causes a
plot to fail silently.
{{{
#!python
import sage.misc.viewer
viewer.png_viewer('/x/y/display')
circle((0,0), 1, rgbcolor=(1,1,0))
}}}
note the "e.g." above. the same thing happens for PDF and DVI files.
browser, on the other hand, reports an error:
{{{
sage: viewer.browser('/x/y/w3m')
sage: tutorial()
/Users/buildsage/src/import/sage/sage-5.4.1/local/bin/sage-native-execute:
line 8: /x/y/w3m: No such file or directory
}}}
on the mailing list, Ivan Andrus commented thus:
> That's true. The function specifically sends all output to /dev/null,
so there's probably some reason for doing that. But we could at least use
the exit status to print a warning that it might not work.
(ps -- let me know about formatting, tagging, etc., mistakes i may have
made.)
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13842>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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