[Python-modules-team] Bug#585442: [matplotlib-devel] Bug#585442: python-matplotlib: crashes when calling axis() after imshow()
Ryan May
rmay31 at gmail.com
Tue Jun 22 01:09:00 UTC 2010
I can reproduce here on Gentoo, both with 0.99.3 and SVN trunk.
Trunk has the following warnings:
/home/rmay/.local/lib/python2.6/site-packages/matplotlib/axes.py:2305:
UserWarning: Attempting to set identical xmin==xmax results in
singular transformations; automatically expanding. xmin=0, xmax=0
warnings.warn('Attempting to set identical xmin==xmax results in
singular transformations; automatically expanding. xmin=%s,
xmax=%s'%(xmin, xmax))
/home/rmay/.local/lib/python2.6/site-packages/matplotlib/axes.py:2479:
UserWarning: Attempting to set identical ymin==ymax results in
singular transformations; automatically expanding. ymin=1.0, ymax=1.0
warnings.warn('Attempting to set identical ymin==ymax results in
singular transformations; automatically expanding. ymin=%s,
ymax=%s'%(ymin, ymax))
terminate called after throwing an instance of 'char const*'
So it doesn't seem completely odd that we have a crash here, but
should still be fixed (by someone who has a clue what might be going
on, which isn't me.)
Ryan
On Mon, Jun 21, 2010 at 5:24 PM, Sandro Tosi <morph at debian.org> wrote:
> forwarded 585442 matplotlib-devel at lists.sourceforge.net
> thanks
>
> Hello Matplotlib developers,
> here below is a report a user of maplotlib sent to the Debian bug
> tracker. I've verified and it happend also with 0.99.3:
>
> $ python -c "import matplotlib as p ; print p.__version__"
> 0.99.3
> $ python mpl_crash.py
> terminate called after throwing an instance of 'char const*'
> Aborted
>
> Thanks for looking into it,
> Sandro
>
> On Thu, Jun 10, 2010 at 16:52, Teemu Ikonen <tpikonen at gmail.com> wrote:
>> Package: python-matplotlib
>> Version: 0.99.1.2-3
>> Severity: important
>>
>> Running a program which displays an image with plt.imshow() and changes the
>> axes with plt.axis() before calling plt.show() crashes the python interpreter:
>>
>> $ python mpl_crash.py
>> terminate called after throwing an instance of 'char const*'
>> Aborted
>>
>> This happens at least with Qt4Agg, GTKAgg and TKAgg backends.
>>
>> The example program is attached.
>>
>> Best,
>>
>> Teemu
>>
>> -- System Information:
>> Debian Release: squeeze/sid
>> APT prefers testing
>> APT policy: (500, 'testing')
>> Architecture: amd64 (x86_64)
>>
>> Kernel: Linux 2.6.32-trunk-amd64 (SMP w/4 CPU cores)
>> Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
>> Shell: /bin/sh linked to /bin/dash
>>
>> Versions of packages python-matplotlib depends on:
>> ii libatk1.0-0 1.30.0-1 The ATK accessibility toolkit
>> ii libc6 2.10.2-9 Embedded GNU C Library: Shared lib
>> ii libcairo2 1.8.10-4 The Cairo 2D vector graphics libra
>> ii libfontconfig1 2.8.0-2.1 generic font configuration library
>> ii libfreetype6 2.3.11-1 FreeType 2 font engine, shared lib
>> ii libgcc1 1:4.4.4-1 GCC support library
>> ii libglib2.0-0 2.24.1-1 The GLib library of C routines
>> ii libgtk2.0-0 2.20.1-1 The GTK+ graphical user interface
>> ii libpango1.0-0 1.28.0-1 Layout and rendering of internatio
>> ii libpng12-0 1.2.43-1 PNG library - runtime
>> ii libstdc++6 4.4.4-1 The GNU Standard C++ Library v3
>> ii python 2.5.4-9 An interactive high-level object-o
>> ii python-cairo 1.8.8-1+b1 Python bindings for the Cairo vect
>> ii python-dateutil 1.4.1-3 powerful extensions to the standar
>> ii python-gobject 2.21.1-1 Python bindings for the GObject li
>> ii python-matplotlib-data 0.99.1.2-3 Python based plotting system (data
>> ii python-numpy 1:1.3.0-3+b1 Numerical Python adds a fast array
>> ii python-pyparsing 1.5.2-2 Python parsing module
>> ii python-support 1.0.8 automated rebuilding support for P
>> ii python-tz 2010b-1 Python version of the Olson timezo
>> ii tcl8.5 8.5.8-2 Tcl (the Tool Command Language) v8
>> ii tk8.5 8.5.8-1 Tk toolkit for Tcl and X11, v8.5 -
>> ii zlib1g 1:1.2.3.4.dfsg-3 compression library - runtime
>>
>> Versions of packages python-matplotlib recommends:
>> ii python-glade2 2.17.0-2 GTK+ bindings: Glade support
>> ii python-tk 2.6.5-1 Tkinter - Writing Tk applications
>>
>> Versions of packages python-matplotlib suggests:
>> ii dvipng 1.13-1 convert DVI files to PNG graphics
>> ii ipython 0.10-2 enhanced interactive Python shell
>> ii librsvg2-common 2.26.3-1 SAX-based renderer library for SVG
>> ii python-configobj 4.7.2+ds-1 simple but powerful config file re
>> pn python-excelerator <none> (no description available)
>> ii python-gtk2 2.17.0-2 Python bindings for the GTK+ widge
>> pn python-matplotlib-doc <none> (no description available)
>> pn python-qt3 <none> (no description available)
>> ii python-qt4 4.7.3-1 Python bindings for Qt4
>> ii python-scipy 0.7.2-1 scientific tools for Python
>> ii python-traits 3.3.0-1 Manifest typing and reactive progr
>> ii python-wxgtk2.8 2.8.10.1-3 wxWidgets Cross-platform C++ GUI t
>> ii texlive-extra-utils 2009-7 TeX Live: TeX auxiliary programs
>> ii texlive-latex-extra 2009-7 TeX Live: LaTeX supplementary pack
>>
>> -- no debconf information
>>
>> _______________________________________________
>> Python-modules-team mailing list
>> Python-modules-team at lists.alioth.debian.org
>> http://lists.alioth.debian.org/mailman/listinfo/python-modules-team
>>
>
>
>
> --
> Sandro Tosi (aka morph, morpheus, matrixhasu)
> My website: http://matrixhasu.altervista.org/
> Me at Debian: http://wiki.debian.org/SandroTosi
>
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--
Ryan May
Graduate Research Assistant
School of Meteorology
University of Oklahoma
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