Take a version check out of the method call. Thanks to Fernando Perez.

mdboom · mdboom · commit 5536c1bd29bc · 2007-08-20T12:47:42.000Z
svn path=/trunk/matplotlib/; revision=3717
diff --git a/lib/matplotlib/backends/backend_gtkcairo.py b/lib/matplotlib/backends/backend_gtkcairo.py
@@ -29,12 +29,14 @@ def new_figure_manager(num, *args, **kwargs):
 
 
 class RendererGTKCairo (backend_cairo.RendererCairo):
-    def set_pixmap (self, pixmap):
-        if gtk.pygtk_version >= (2,7,0):
+    if gtk.pygtk_version >= (2,7,0):
+        def set_pixmap (self, pixmap):
             self.ctx = pixmap.cairo_create()
-        else:
+            self.ctx.save()  # restore, save  - when call new_gc()
+    else:
+        def set_pixmap (self, pixmap):
             self.ctx = cairo.gtk.gdk_cairo_create (pixmap)
-        self.ctx.save()  # restore, save  - when call new_gc()
+            self.ctx.save()  # restore, save  - when call new_gc()
 
 
 class FigureCanvasGTKCairo(FigureCanvasGTK):
