I've been using matplotlib for some time without problems. It's been a while since i needed the interactive plot functions (for which Tkaag was used). Since then i updated matplotlib a few times.
I tried to use it today, but it spawned an error.
/usr/local/lib/python2.7/dist-packages/matplotlib/backends/tkagg.py in <module>() ----> 1 import _tkagg 2 import Tkinter as Tk 3 4 def blit(photoimage, aggimage, bbox=None, colormode=1): 5 tk = photoimage.tk ImportError: No module named _tkagg
I tried a different backend, added the
backend : GTKAgg
to matplotlibrc. Just to get the same error for a different module.
ImportError: No module named _backend_gdk
When I browsed for backends in /usr/local/lib/python2.7/dist-packages/matplotlib/backends/ i've noticed that all the required modules with underscore are missing.
alan@linux /usr/local/lib/python2.7/dist-packages/matplotlib/backends $ ls backend_agg.py backend_macosx.py backend_template.pyc backend_agg.pyc backend_macosx.pyc backend_tkagg.py _backend_agg.so backend_mixed.py backend_tkagg.pyc backend_cairo.py backend_mixed.pyc backend_wxagg.py backend_cairo.pyc backend_pdf.py backend_wxagg.pyc backend_cocoaagg.py backend_pdf.pyc backend_wx.py backend_cocoaagg.pyc backend_ps.py backend_wx.pyc backend_emf.py backend_ps.pyc __init__.py backend_emf.pyc backend_qt4agg.py __init__.pyc backend_fltkagg.py backend_qt4agg.pyc Matplotlib.nib backend_fltkagg.pyc backend_qt4.py qt4_compat.py backend_gdk.py backend_qt4.pyc qt4_compat.pyc backend_gdk.pyc backend_qtagg.py qt4_editor backend_gtkagg.py backend_qtagg.pyc tkagg.py backend_gtkagg.pyc backend_qt.py tkagg.pyc backend_gtkcairo.py backend_qt.pyc windowing.py backend_gtkcairo.pyc backend_svg.py windowing.pyc backend_gtk.py backend_svg.pyc backend_gtk.pyc backend_template.py
My current matplotlib version:
matplotlib - 1.1.1 - active development (/usr/local/lib/python2.7/dist-packages)
I've tried uninstalled and reinstalling matplotlib with:
pip uninstall matplotlib pip install matplotlib
and all went well.
Tips on setting on getting interactive plotting running again?
BUILDING MATPLOTLIB matplotlib: 1.1.1 python: 2.7.3rc2 (default, Apr 22 2012, 22:35:38) [GCC 4.6.3] platform: linux2 REQUIRED DEPENDENCIES numpy: 1.6.2 freetype2: 14.1.8 OPTIONAL BACKEND DEPENDENCIES libpng: 1.2.49 Tkinter: no * Using default library and include directories for * Tcl and Tk because a Tk window failed to open. * You may need to define DISPLAY for Tk to work so * that setup can determine where your libraries are * located. Tkinter present, but header files are not * found. You may need to install development * packages. pkg-config: looking for pygtk-2.0 gtk+-2.0 * Package pygtk-2.0 was not found in the pkg-config * search path. Perhaps you should add the directory * containing `pygtk-2.0.pc' to the PKG_CONFIG_PATH * environment variable No package 'pygtk-2.0' found * Package gtk+-2.0 was not found in the pkg-config * search path. Perhaps you should add the directory * containing `gtk+-2.0.pc' to the PKG_CONFIG_PATH * environment variable No package 'gtk+-2.0' found * You may need to install 'dev' package(s) to * provide header files. Gtk+: no * Could not find Gtk+ headers in any of * '/usr/local/include', '/usr/include', '.' Mac OS X native: no Qt: no Qt4: Qt: 4.8.1, PyQt4: 4.9.1 PySide: no Cairo: 1.8.8 OPTIONAL DATE/TIMEZONE DEPENDENCIES datetime: present, version unknown dateutil: matplotlib will provide pytz: matplotlib will provide adding pytz OPTIONAL USETEX DEPENDENCIES dvipng: 1.14 ghostscript: 9.05 latex: 3.1415926 pdftops: 0.18.4
Thanks to peison's comment I've checked the installation log for matplotlib and it showed lots of dependencies.
I haven't noticed that before because the whole process of instalation ran really fast using
pip install matplotlib
and ended with a succesfull install.
To answer the question. The solution was to install packages tk and tk-dev, and rebuild matplotlib.