Catch errors importing wxnviz

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@42278 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/gui_modules/workspace.py

@@ -37,11 +37,11 @@ import globalvar
 from preferences import globalSettings as UserSettings
 
 #sys.path.append(os.path.join(globalvar.ETCWXDIR, "nviz"))
-#try:
-#    import grass7_wxnviz as wxnviz
-#except ImportError:
-#    wxnviz = None
-import wxnviz
+try:
+    #import grass7_wxnviz as wxnviz
+    import wxnviz
+except ImportError:
+    wxnviz = None
 
 class ProcessWorkspaceFile:
     def __init__(self, tree):