Revision: 6175
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=6175&view=rev
Author: mdboom
Date: 2008-10-09 11:37:01 +0000 (Thu, 09 Oct 2008)
Log Message:
-----------
Better version of 'show' warning that only emits when show() is run directly
from the python or ipython console.
Modified Paths:
--------------
trunk/matplotlib/lib/matplotlib/backends/__init__.py
Modified: trunk/matplotlib/lib/matplotlib/backends/__init__.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/backends/__init__.py 2008-10-09
01:19:54 UTC (rev 6174)
+++ trunk/matplotlib/lib/matplotlib/backends/__init__.py 2008-10-09
11:37:01 UTC (rev 6175)
@@ -1,5 +1,6 @@
import matplotlib
+import inspect
import warnings
# ipython relies on interactive_bk being defined here
@@ -30,11 +31,14 @@
# 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("""
+ frame = inspect.currentframe()
+ fname = inspect.getframeinfo(frame.f_back)[0]
+ if fname in ('<stdin>', '<ipython console>'):
+ 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()))
+ (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)
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