[pybliographer] Fix DateError crash at opening

[Zoltan Kota <zkota src gnome org>]

commit d3401dd41a3809d56691b8602c7a2cc2279222f1
Author: Zoltan Kota <zoltank gmail com>
Date:   Tue Feb 8 13:36:49 2011 +0100

    Fix DateError crash at opening
    
    Opening a biblio file, which contains an invalid date value,
    raises an error. Lets's catch Exceptions.DateError during
    opening as well, and show the error dialog instead of a crash.

 Pyblio/GnomeUI/Document.py |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/Pyblio/GnomeUI/Document.py b/Pyblio/GnomeUI/Document.py
index 909c5b4..1871641 100644
--- a/Pyblio/GnomeUI/Document.py
+++ b/Pyblio/GnomeUI/Document.py
@@ -541,7 +541,8 @@ class Document (Connector.Publisher):
             
         except (Exceptions.ParserError,
                 Exceptions.FormatError,
-                Exceptions.FileError), error:
+                Exceptions.FileError,
+                Exceptions.DateError), error:
             
             Utils.error_dialog (_("Open error"), error,
                                 parent = self.w)
@@ -626,7 +627,8 @@ class Document (Connector.Publisher):
             
         except (Exceptions.ParserError,
                 Exceptions.FormatError,
-                Exceptions.FileError), error:
+                Exceptions.FileError,
+                Exceptions.DateError), error:
             
             Utils.set_cursor (self.w, 'normal')
             Utils.error_dialog (_("Open error"), error,