fixed rcsetup to respect external module backends

jdh2358 · jdh2358 · commit 9f0a285c847c · 2008-10-21T14:36:53.000Z
svn path=/trunk/matplotlib/; revision=6286
diff --git a/examples/misc/image_thumbnail.py b/examples/misc/image_thumbnail.py
@@ -13,7 +13,7 @@
     print 'Usage: python %s IMAGEDIR'%__file__
     raise SystemExit
 indir = sys.argv[1]
-if not os.path.exists(indir):
+if not os.path.isdir(indir):
     print 'Could not find input directory "%s"'%indir
     raise SystemExit
 
diff --git a/lib/matplotlib/image.py b/lib/matplotlib/image.py
@@ -846,22 +846,17 @@ def thumbnail(fname, scale=0.1, interpolation='bilinear', prefix='thumb_',
     else:
         if extension=='png':
             from matplotlib.backends.backend_agg import FigureCanvasAgg as FigureCanvas
-            from matplotlib.figure import Figure
         elif extension=='pdf':
             from matplotlib.backends.backend_pdf import FigureCanvasPDF as FigureCanvas
-            from matplotlib.figure import Figure
         elif extension=='svg':
             from matplotlib.backends.backend_svg import FigureCanvasSVG as FigureCanvas
-            from matplotlib.figure import Figure
         else:
             raise ValueError("Can only handle extension 'png', 'svg' or 'pdf'")
 
+        from matplotlib.figure import Figure
         fig = Figure(figsize=(width, height), dpi=dpi)
         canvas = FigureCanvas(fig)
 
-
-
-
     ax = fig.add_axes([0,0,1,1], aspect='auto', frameon=False, xticks=[], yticks=[])
 
     basename, ext = os.path.splitext(basename)
diff --git a/lib/matplotlib/rcsetup.py b/lib/matplotlib/rcsetup.py
@@ -100,7 +100,11 @@ def validate_fonttype(s):
             raise ValueError('Supported Postscript/PDF font types are %s' % fonttypes.values())
         return fonttype
 
-validate_backend = ValidateInStrings('backend', all_backends, ignorecase=True)
+#validate_backend = ValidateInStrings('backend', all_backends, ignorecase=True)
+_validate_standard_backends = ValidateInStrings('backend', all_backends, ignorecase=True)
+def validate_backend(s):
+    if s.startswith('module://'): return s
+    else: return _validate_standard_backends(s)
 
 validate_numerix = ValidateInStrings('numerix',[
     'Numeric','numarray','numpy',
