[Python-modules-team] Bug#502976: python-matplotlib: pylab.show() does nothing

[Michael Hanke]

Package: python-matplotlib
Version: 0.98.3-4
Severity: normal

Hi,

I installed the latest python-matplotlib package from unstable on a
lenny system to workaround a bug that prevents me from using matplotlib
on lenny at all.

I had to learn that the new package version does not allow for
interactive plotting. Please see this:


hanke at eris:~$ ipython --pylab
Python 2.5.2 (r252:60911, Sep 29 2008, 21:15:13) 
Type "copyright", "credits" or "license" for more information.

IPython 0.8.4 -- An enhanced Interactive Python.
?         -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help      -> Python's own help system.
object?   -> Details about 'object'. ?object also works, ?? prints more.

  Welcome to pylab, a matplotlib-based Python environment.
    For more information, type 'help(pylab)'.

In [1]: plot(range(5))
Out[1]: [<matplotlib.lines.Line2D object at 0x8f574cc>]

In [2]: show()

In [3]: isinteractive()
Out[3]: True

In [4]: savefig('test.png')

In [5]: !display test.png

In [6]:


The show() call in [2] has no effect whatsoever, but calling savefig()
does store the plot in a file.


Thanks,

Michael


-- System Information:
Debian Release: lenny/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)

Kernel: Linux 2.6.26-1-686 (SMP w/2 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages python-matplotlib depends on:
ii  libatk1.0-0            1.22.0-1          The ATK accessibility toolkit
ii  libc6                  2.7-14            GNU C Library: Shared libraries
ii  libcairo2              1.6.4-6           The Cairo 2D vector graphics libra
ii  libfreetype6           2.3.7-2           FreeType 2 font engine, shared lib
ii  libgcc1                1:4.3.2-1         GCC support library
ii  libglib2.0-0           2.16.6-1          The GLib library of C routines
ii  libgtk2.0-0            2.12.11-3         The GTK+ graphical user interface 
ii  libpango1.0-0          1.20.5-2          Layout and rendering of internatio
ii  libpng12-0             1.2.27-2          PNG library - runtime
ii  libstdc++6             4.3.2-1           The GNU Standard C++ Library v3
ii  python                 2.5.2-2           An interactive high-level object-o
ii  python-cairo           1.4.12-1.1        Python bindings for the Cairo vect
ii  python-central         0.6.8             register and build utility for Pyt
ii  python-dateutil        1.4-1             powerful extensions to the standar
ii  python-excelerator     0.6.3a-3.1        module for reading/writing Excel s
ii  python-glade2          2.12.1-6          GTK+ bindings: Glade support
ii  python-gobject         2.14.2-1          Python bindings for the GObject li
ii  python-gtk2            2.12.1-6          Python bindings for the GTK+ widge
ii  python-matplotlib-data 0.98.3-4          Python based plotting system (data
ii  python-numpy           1:1.1.0-3         Numerical Python adds a fast array
ii  python-pyparsing       1.5.0-1           Python parsing module
ii  python-tk              2.5.2-1           Tkinter - Writing Tk applications 
ii  python-tz              2008c-2           Python version of the Olson timezo
ii  tcl8.4                 8.4.19-2          Tcl (the Tool Command Language) v8
ii  tk8.4                  8.4.19-2          Tk toolkit for Tcl and X11, v8.4 -
ii  zlib1g                 1:1.2.3.3.dfsg-12 compression library - runtime

Versions of packages python-matplotlib recommends:
ii  dvipng                        1.11-1     convert DVI files to PNG graphics

Versions of packages python-matplotlib suggests:
ii  ipython                    0.8.4-1       enhanced interactive Python shell
pn  python-configobj           <none>        (no description available)
pn  python-enthought-traits    <none>        (no description available)
pn  python-matplotlib-doc      <none>        (no description available)
ii  python-scipy               0.6.0-12      scientific tools for Python
ii  texlive-extra-utils        2007.dfsg.2-3 TeX Live: TeX auxiliary programs
pn  texlive-latex-extra        <none>        (no description available)

-- no debconf information