Bug#751767: blt breaks python-matplotlib

[Martin Lutz <m.lutz@uu.nl>]

Package: blt
Version: 2.4z-9
Severity: important

Dear Maintainer,

after upgrading blt to version 2.4z-9 the package python-matplotlib becomes
unusable.

My program t.py contains one single line:
import matplotlib.pylab as plt

Running the program gives the following traceback:


  File "t.py", line 1, in <module>
    import matplotlib.pylab as plt
  File "/usr/lib/pymodules/python2.7/matplotlib/pylab.py", line 269, in <module>
    from matplotlib.pyplot import *
  File "/usr/lib/pymodules/python2.7/matplotlib/pyplot.py", line 98, in <module>
    _backend_mod, new_figure_manager, draw_if_interactive, _show = pylab_setup()
  File "/usr/lib/pymodules/python2.7/matplotlib/backends/__init__.py", line 28, in pylab_setup
    globals(),locals(),[backend_name],0)
  File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_tkagg.py", line 8, in <module>
    import Tkinter as Tk, FileDialog
  File "/usr/lib/python2.7/lib-tk/Tkinter.py", line 42, in <module>
    raise ImportError, str(msg) + ', please install the python-tk package'
ImportError: libBLT.2.4.so.8.5: cannot open shared object file: No such file or directory, please install the python-tk package


Note 1: the package python-tk is already installed.
Note 2: currently, there is the file /usr/lib/libBLT.2.4.so.8.6


-- System Information:
Debian Release: jessie/sid
  APT prefers testing
  APT policy: (990, 'testing')
Architecture: i386 (i686)

Kernel: Linux 3.14-1-686-pae (SMP w/4 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages blt depends on:
ii  libc6      2.19-1
ii  libtcl8.6  8.6.1-6
ii  libtk8.6   8.6.1-5
ii  libx11-6   2:1.6.2-2

blt recommends no packages.

Versions of packages blt suggests:
pn  blt-demo  <none>

-- no debconf information