Processed: Re: [Python-modules-team] Bug#556943: python-matplotlib: Segfaults with Qt4Agg backend
Processing commands for cont...@bugs.debian.org: severity 556943 minor Bug #556943 [python-matplotlib] python-matplotlib: Segfaults with Qt4Agg backend Severity set to 'minor' from 'grave' thanks Stopping processing here. Please contact me if you need assistance. Debian bug tracking system administrator (administrator, Debian Bugs database) -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#556943: [Python-modules-team] Bug#556943: python-matplotlib: Segfaults with Qt4Agg backend
severity 556943 minor
thanks
On Sun, Nov 22, 2009 at 14:03, Benjamin Drung bdr...@ubuntu.com wrote:
Am Mittwoch, den 18.11.2009, 15:01 +0100 schrieb Teemu Ikonen:
import matplotlib.pyplot as plt
plt.plot([1,2])
Segmentation fault
I enabled Qt4Agg backend and tried this example code without an
segmentation fault in an up-to-date squeeze environment.
This is could be a bug in python-qt4, which was updated recently, but other
PyQt4 applications work fine here.
That's possible. Is your system up-to-date? Where there any PyQt4
updates since you reported this bug? Do you still experience the bug?
I just created a fresh squeeze chroot, then
# apt-get install python-matplotlib
...
# apt-get install python-qt4
...
# export DISPLAY=:0.0
# python
Python 2.5.4 (r254:67916, Sep 26 2009, 10:32:22)
[GCC 4.3.4] on linux2
Type help, copyright, credits or license for more information.
import matplotlib as mpl
mpl.use('Qt4Agg')
import matplotlib.pyplot as plt
plt.plot([1,2])
QGtkStyle cannot be used together with the GTK_Qt engine.
[matplotlib.lines.Line2D object at 0x2275590]
plt.show()
So there should be something broken on your machine (hence the
severity downgrade).
Versions of packages python-matplotlib depends on:
ii libatk1.0-01.28.0-1 The ATK accessibility toolkit
ii libc6 2.10.1-7 GNU C Library: Shared libraries
ii libcairo2 1.8.8-2 The Cairo 2D vector graphics libra
ii libfontconfig1 2.6.0-4 generic font configuration library
ii libfreetype6 2.3.11-1 FreeType 2 font engine, shared lib
ii libgcc11:4.4.2-3 GCC support library
ii libglib2.0-0 2.22.2-2 The GLib library of C routines
ii libgtk2.0-02.18.3-1 The GTK+ graphical user interface
ii libpango1.0-0 1.26.0-1 Layout and rendering of internatio
ii libpng12-0 1.2.40-1 PNG library - runtime
ii libstdc++6 4.4.2-3 The GNU Standard C++ Library v3
ii python 2.5.4-2 An interactive high-level object-o
ii python-cairo 1.8.6-1 Python bindings for the Cairo vect
ii python-dateutil1.4.1-3 powerful extensions to the standar
ii python-gobject 2.20.0-1 Python bindings for the GObject li
ii python-matplotlib-data 0.99.1.2-1Python based plotting system (data
ii python-numpy 1:1.3.0-3 Numerical Python adds a fast array
ii python-pyparsing 1.5.2-1 Python parsing module
ii python-support 1.0.4 automated rebuilding support for P
ii python-tz 2009p-1 Python version of the Olson timezo
ii tcl8.5 8.5.7-1 Tcl (the Tool Command Language) v8
ii tk8.5 8.5.7-2 Tk toolkit for Tcl and X11, v8.5 -
ii zlib1g 1:1.2.3.3.dfsg-15 compression library - runtime
Versions of packages python-matplotlib recommends:
ii python-glade2 2.16.0-1 GTK+ bindings: Glade support
ii python-gtk2 2.16.0-1 Python bindings for the GTK+ widge
ii python-qt44.6-1 Python bindings for Qt4
Could you please look at these deps and see if upgrading/downgrading
some of this packages helps?
Regards,
--
Sandro Tosi (aka morph, morpheus, matrixhasu)
My website: http://matrixhasu.altervista.org/
Me at Debian: http://wiki.debian.org/SandroTosi
--
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Bug#556943: python-matplotlib: Segfaults with Qt4Agg backend
On Sun, Nov 22, 2009 at 2:03 PM, Benjamin Drung bdr...@ubuntu.com wrote: Am Mittwoch, den 18.11.2009, 15:01 +0100 schrieb Teemu Ikonen: import matplotlib.pyplot as plt plt.plot([1,2]) Segmentation fault [...] Is your system up-to-date? Where there any PyQt4 updates since you reported this bug? Do you still experience the bug? I just updated to latest testing and the bug is still there. I have some packages installed from unstable, but the packages mostly relevant here (python, python-matplotlib, python-qt4 and libqt4) are from testing. Teemu -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#556943: python-matplotlib: Segfaults with Qt4Agg backend
Am Mittwoch, den 18.11.2009, 15:01 +0100 schrieb Teemu Ikonen: import matplotlib.pyplot as plt plt.plot([1,2]) Segmentation fault I enabled Qt4Agg backend and tried this example code without an segmentation fault in an up-to-date squeeze environment. This is could be a bug in python-qt4, which was updated recently, but other PyQt4 applications work fine here. That's possible. Is your system up-to-date? Where there any PyQt4 updates since you reported this bug? Do you still experience the bug? -- Benjamin Drung Ubuntu Developer (www.ubuntu.com) | Debian Maintainer (www.debian.org) signature.asc Description: Dies ist ein digital signierter Nachrichtenteil
Bug#556943: python-matplotlib: Segfaults with Qt4Agg backend
Package: python-matplotlib Version: 0.99.0-1 Severity: grave Justification: renders package unusable Matplotlib segfaults immediately when trying to create a plot with the Qt4Agg backend enabled in matplotlibrc. Example: import matplotlib.pyplot as plt plt.plot([1,2]) Segmentation fault Other backends, such as GTKAgg work fine. This is could be a bug in python-qt4, which was updated recently, but other PyQt4 applications work fine here. Best, Teemu -- System Information: Debian Release: squeeze/sid APT prefers testing APT policy: (450, 'testing'), (1, 'experimental') Architecture: i386 (i686) Kernel: Linux 2.6.30-2-686 (SMP w/2 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/bash Versions of packages python-matplotlib depends on: ii libatk1.0-01.28.0-1 The ATK accessibility toolkit ii libc6 2.10.1-7 GNU C Library: Shared libraries ii libcairo2 1.8.8-2 The Cairo 2D vector graphics libra ii libfontconfig1 2.6.0-4 generic font configuration library ii libfreetype6 2.3.11-1 FreeType 2 font engine, shared lib ii libgcc11:4.4.2-2 GCC support library ii libglib2.0-0 2.22.2-2 The GLib library of C routines ii libgtk2.0-02.18.3-1 The GTK+ graphical user interface ii libpango1.0-0 1.26.0-1 Layout and rendering of internatio ii libpng12-0 1.2.40-1 PNG library - runtime ii libstdc++6 4.4.2-2 The GNU Standard C++ Library v3 ii python 2.5.4-2 An interactive high-level object-o ii python-cairo 1.8.6-1 Python bindings for the Cairo vect ii python-dateutil1.4.1-3 powerful extensions to the standar ii python-excelerator 0.6.4.1-1 module for reading/writing Excel s ii python-glade2 2.16.0-1 GTK+ bindings: Glade support ii python-gobject 2.20.0-1 Python bindings for the GObject li ii python-gtk22.16.0-1 Python bindings for the GTK+ widge ii python-matplotlib-data 0.99.0-1 Python based plotting system (data ii python-numpy 1:1.3.0-3 Numerical Python adds a fast array ii python-pyparsing 1.5.2-1 Python parsing module ii python-qt4 4.6-1 Python bindings for Qt4 ii python-support 1.0.4 automated rebuilding support for P ii python-tk 2.5.2-1.1 Tkinter - Writing Tk applications ii python-tz 2009n-1 Python version of the Olson timezo ii python-wxgtk2.82.8.7.1-2+b1 wxWidgets Cross-platform C++ GUI t ii tcl8.5 8.5.7-1 Tcl (the Tool Command Language) v8 ii tk8.5 8.5.7-2 Tk toolkit for Tcl and X11, v8.5 - ii zlib1g 1:1.2.3.3.dfsg-15 compression library - runtime python-matplotlib recommends no packages. Versions of packages python-matplotlib suggests: ii dvipng1.12-1 convert DVI files to PNG graphics ii ipython 0.10-1 enhanced interactive Python shell ii python-configobj 4.5.2-2a simple but powerful config file pn python-matplotlib-doc none (no description available) ii python-scipy 0.7.0-2scientific tools for Python pn python-traits none (no description available) ii texlive-extra-utils 2007.dfsg.2-7 TeX Live: TeX auxiliary programs ii texlive-latex-extra 2007.dfsg.17-2 TeX Live: LaTeX supplementary pack -- no debconf information -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
