Your message dated Fri, 2 Feb 2018 09:41:15 -0500
with message-id 
and subject line Re: Bug#889137: python-matplotlib: Missing Gtk backend
has caused the Debian Bug report #889137,
regarding python-matplotlib: Missing Gtk backend
to be marked as done.

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--- Begin Message ---
Package: python-matplotlib
Version: 2.1.1-2
Severity: normal

Dear Maintainer,

Version > 2.0 of the package does not include the necessary .so files for
the Gtk2 backend.

Attempting to use the Gtk2 backend with the following:

Results in the following error:

Traceback (most recent call last):
  File "/tmp/", line 23, in <module>
    import matplotlib.pyplot as plt
  File "/usr/lib/python2.7/dist-packages/matplotlib/", line 116,
in <module>
    _backend_mod, new_figure_manager, draw_if_interactive, _show =
  File "/usr/lib/python2.7/dist-packages/matplotlib/backends/",
line 60, in pylab_setup
    [backend_name], 0)
line 14, in <module>
    from matplotlib.backends.backend_gtk import (
"/usr/lib/python2.7/dist-packages/matplotlib/backends/", line
35, in <module>
    from matplotlib.backends.backend_gdk import RendererGDK, FigureCanvasGDK
"/usr/lib/python2.7/dist-packages/matplotlib/backends/", line
33, in <module>
    from matplotlib.backends._backend_gdk import pixbuf_get_pixels_array
ImportError: No module named _backend_gdk

Users should note however that the Gtk3 backend works and can be used with:



-- System Information:
Debian Release: buster/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.13.0-1-amd64 (SMP w/8 CPU cores)
Locale: LANG=fr_CA.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8),
LANGUAGE=fr_CA.UTF-8:fr:en_US:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages python-matplotlib depends on:
ii  libc6                                 2.26-6
ii  libfreetype6                          2.8.1-1
ii  libgcc1                               1:7.3.0-1
ii  libjs-jquery                          3.2.1-1
ii  libjs-jquery-ui                       1.12.1+dfsg-5
ii  libpng16-16                           1.6.34-1
ii  libstdc++6                            7.3.0-1
ii  python                                2.7.14-4
ii  python-backports.functools-lru-cache  1.4-2
ii  python-cycler                         0.10.0-1
ii  python-dateutil                       2.6.1-1
ii  python-matplotlib-data                2.1.1-2
ii  python-numpy [python-numpy-abi9]      1:1.13.3-2
ii  python-pyparsing                      2.1.10+dfsg1-1
ii  python-six                            1.11.0-1
ii  python-subprocess32                   3.2.7-2
ii  python-tz                             2017.2-2
ii  zlib1g                                1:1.2.8.dfsg-5

Versions of packages python-matplotlib recommends:
ii  python-pil  5.0.0-1
ii  python-tk   2.7.14-2

Versions of packages python-matplotlib suggests:
ii  dvipng                 1.15-1
ii  ffmpeg                 10:3.4.1-dmo3
ii  ghostscript            9.22~dfsg-1
ii  gir1.2-gtk-3.0         3.22.26-2
ii  inkscape               0.92.2-3
ii  ipython                5.5.0-1
ii  librsvg2-common        2.40.20-2
pn  python-cairocffi       <none>
pn  python-configobj       <none>
pn  python-excelerator     <none>
ii  python-gobject         3.26.1-2
pn  python-matplotlib-doc  <none>
pn  python-nose            <none>
ii  python-qt4             4.12.1+dfsg-2
ii  python-scipy           0.19.1-2
ii  python-sip             4.19.7+dfsg-1
pn  python-tornado         <none>
pn  python-traits          <none>
ii  python-wxgtk3.0
ii  texlive-extra-utils    2017.20180110-1
ii  texlive-latex-extra    2017.20180110-1
pn  ttf-staypuft           <none>

-- no debconf information

--- End Message ---
--- Begin Message ---
> Version > 2.0 of the package does not include the necessary .so files for
> the Gtk2 backend.

this is expected: the GTK2 stack is being deprecated in Debian in
favor of GTK3, hence why it's no longer available in matplotlib too.
As you pointed out, please use Gtk3/Gtk3agg instead

Sandro "morph" Tosi
My website:
Me at Debian:

--- End Message ---

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