Revision: 6168
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=6168&view=rev
Author: mdboom
Date: 2008-10-08 13:59:28 +0000 (Wed, 08 Oct 2008)
Log Message:
-----------
Addresses this Ubuntu bug:
https://bugs.launchpad.net/ubuntu/+source/matplotlib/+bug/278764
Display a warning when show() is called with a non-GUI backend, so that the
user is not left scratching their head when running "ipython -pylab"
Modified Paths:
--------------
trunk/matplotlib/lib/matplotlib/backends/__init__.py
Modified: trunk/matplotlib/lib/matplotlib/backends/__init__.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/backends/__init__.py 2008-10-08
04:07:21 UTC (rev 6167)
+++ trunk/matplotlib/lib/matplotlib/backends/__init__.py 2008-10-08
13:59:28 UTC (rev 6168)
@@ -1,5 +1,6 @@
import matplotlib
+import warnings
# ipython relies on interactive_bk being defined here
from matplotlib.rcsetup import interactive_bk
@@ -28,9 +29,15 @@
# image backends like pdf, agg or svg do not need to do anything
# for "show" or "draw_if_interactive", so if they are not defined
# by the backend, just do nothing
+ def do_nothing_show(*args, **kwargs):
+ warnings.warn("""
+Your currently selected backend, '%s' does not support show().
+Please select a GUI backend in your matplotlibrc file ('%s')
+or with matplotlib.use()""" %
+ (backend, matplotlib.matplotlib_fname()))
def do_nothing(*args, **kwargs): pass
backend_version = getattr(backend_mod,'backend_version', 'unknown')
- show = getattr(backend_mod, 'show', do_nothing)
+ show = getattr(backend_mod, 'show', do_nothing_show)
draw_if_interactive = getattr(backend_mod, 'draw_if_interactive',
do_nothing)
# Additional imports which only happen for certain backends. This section
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