#14469: Fix _repr_ of graphics objects
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Reporter: vbraun | Owner: jason, was
Type: defect | Status: new
Priority: major | Milestone: sage-5.10
Component: graphics | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers:
Authors: | Merged in:
Dependencies: | Stopgaps:
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Description changed by vbraun:
Old description:
> Graphical output of plots (or other graphics objects) is hooked into
> `_repr_()`. Obviously, Python doesn't expect `repr` to have side effects
> so we get fun stuff like
> {{{
> sage: g = Graphics()
> sage: g?
> }}}
> showing a plot in addition to the help.
>
> This patch moves the decision logic into the displayhook, and makes
> `repr` always return a string representation as it should.
>
> Also, deprecate the `show_output()` function. Wat?
New description:
Graphical output of plots (or other graphics objects) is hooked into
`_repr_()`. Obviously, Python doesn't expect `repr` to have side effects
so we get fun stuff like
{{{
sage: g = Graphics()
sage: g?
}}}
showing a plot in addition to the help. Or `(g,g)` opening two plot output
windows if used on the command line. You don't want to try `[g]*100`
This patch moves the decision logic into the displayhook, and makes `repr`
always return a string representation as it should.
Also, deprecate the `show_output()` function. Wat?
--
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14469#comment:1>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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