Merge pull request #1813 from mdboom/gtk3-version-check

mdboom · mdboom · commit dd3894533b57 · 2013-05-28T08:17:37.000-07:00
GTK segfault with GTK3 and mpl_toolkits
diff --git a/lib/matplotlib/backends/backend_gtk3.py b/lib/matplotlib/backends/backend_gtk3.py
@@ -3,10 +3,22 @@
 import os, sys
 def fn_name(): return sys._getframe(1).f_code.co_name
 
+try:
+    import gi
+except ImportError:
+    raise ImportError("Gtk3 backend requires pygobject to be installed.")
+
+try:
+    gi.require_version("Gtk", "3.0")
+except ValueError:
+    raise ImportError(
+        "Gtk3 backend requires the GObject introspection bindings for Gtk 3 "
+        "to be installed.")
+
 try:
     from gi.repository import Gtk, Gdk, GObject
 except ImportError:
-    raise ImportError("GTK3 backend requires pygobject to be installed.")
+    raise ImportError("Gtk3 backend requires pygobject to be installed.")
 
 import matplotlib
 from matplotlib._pylab_helpers import Gcf
