#9683: pretty_print clobbers _ (history)
------------------------------+---------------------------------------------
Reporter: mguaypaq | Owner: was
Type: defect | Status: new
Priority: major | Milestone: sage-4.5.2
Component: user interface | Keywords: pretty_print, history
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
------------------------------+---------------------------------------------
After using `pretty_print`, the first history variable (`_`) no longer
updates.
{{{
----------------------------------------------------------------------
| Sage Version 4.5.1, Release Date: 2010-07-19 |
| Type notebook() for the GUI, and license() for information. |
----------------------------------------------------------------------
Loading Sage library. Current Mercurial branch is: combinat
sage: 17
17
sage: _
17
sage: 23
23
sage: _
23
sage: pretty_print(17)
<html><span
class="math">\newcommand{\Bold}[1]{\mathbf{#1}}17</span></html>
sage: _
17
sage: 23
23
sage: _
17
}}}
The relevant function seems to be `pretty_print` in `/sage/misc/latex.py`,
but I don't know the right way to fix it. The function and
`pretty_print_default` in same file, and the functions `displayhook` and
`install` in `/sage/misc/displayhook.py` may also be relevant.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9683>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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