r5577 - in trunk/gnue-common/src/datasources: . drivers/DBSIG2 drivers/adodbapi/adodbapi drivers/db2/db2 drivers/dbf/dbf drivers/gadfly/gadfly drivers/informix/informix drivers/ingres/ingres drivers/interbase/interbase drivers/ldap drivers/mysql/mysql drivers/odbc/wodbc drivers/oracle/cxoracle drivers/oracle/dcoracle drivers/postgresql/popy drivers/postgresql/psycopg drivers/postgresql/pygresql drivers/postgresql/pypgsql drivers/sapdb/sapdb drivers/sqlite/sqlite drivers/sqlrelay/sqlrelay drivers/sybase/sybase

[reinhard]

Author: reinhard
Date: 2004-03-30 13:25:36 -0600 (Tue, 30 Mar 2004)
New Revision: 5577

Modified:
   trunk/gnue-common/src/datasources/Exceptions.py
   trunk/gnue-common/src/datasources/GConnections.py
   trunk/gnue-common/src/datasources/drivers/DBSIG2/__init__.py
   trunk/gnue-common/src/datasources/drivers/adodbapi/adodbapi/Connection.py
   trunk/gnue-common/src/datasources/drivers/db2/db2/Connection.py
   trunk/gnue-common/src/datasources/drivers/dbf/dbf/Connection.py
   trunk/gnue-common/src/datasources/drivers/gadfly/gadfly/Connection.py
   trunk/gnue-common/src/datasources/drivers/informix/informix/Connection.py
   trunk/gnue-common/src/datasources/drivers/ingres/ingres/Connection.py
   trunk/gnue-common/src/datasources/drivers/interbase/interbase/Connection.py
   trunk/gnue-common/src/datasources/drivers/ldap/Driver.py
   trunk/gnue-common/src/datasources/drivers/mysql/mysql/Connection.py
   trunk/gnue-common/src/datasources/drivers/odbc/wodbc/Connection.py
   trunk/gnue-common/src/datasources/drivers/oracle/cxoracle/Driver.py
   trunk/gnue-common/src/datasources/drivers/oracle/dcoracle/Driver.py
   trunk/gnue-common/src/datasources/drivers/postgresql/popy/Driver.py
   trunk/gnue-common/src/datasources/drivers/postgresql/psycopg/Driver.py
   trunk/gnue-common/src/datasources/drivers/postgresql/pygresql/Driver.py
   trunk/gnue-common/src/datasources/drivers/postgresql/pypgsql/Driver.py
   trunk/gnue-common/src/datasources/drivers/sapdb/sapdb/Connection.py
   trunk/gnue-common/src/datasources/drivers/sqlite/sqlite/Connection.py
   trunk/gnue-common/src/datasources/drivers/sqlrelay/sqlrelay/Connection.py
   trunk/gnue-common/src/datasources/drivers/sybase/sybase/Connection.py
Log:
Use same exception in all drivers to indicate missing dependency.


Modified: trunk/gnue-common/src/datasources/Exceptions.py
===================================================================
--- trunk/gnue-common/src/datasources/Exceptions.py     2004-03-30 18:30:01 UTC 
(rev 5576)
+++ trunk/gnue-common/src/datasources/Exceptions.py     2004-03-30 19:25:36 UTC 
(rev 5577)
@@ -28,7 +28,7 @@
 # NOTES:
 #
 
-class Error(StandardError):
+class Error(gException):
   # Base exception
   pass
 

Modified: trunk/gnue-common/src/datasources/GConnections.py
===================================================================
--- trunk/gnue-common/src/datasources/GConnections.py   2004-03-30 18:30:01 UTC 
(rev 5576)
+++ trunk/gnue-common/src/datasources/GConnections.py   2004-03-30 19:25:36 UTC 
(rev 5577)
@@ -45,7 +45,7 @@
 from gnue.common.utils.FileUtils import openResource, dyn_import
 import GLoginHandler
 
-class Error(StandardError):
+class Error(gException):
   # Base error
   pass
 
@@ -59,6 +59,16 @@
   # the python libraries are not installed.
   pass
 
+class DependencyError (Error):
+  # Raised by the dbdrivers if a dependency module is missing
+  def __init__ (self, modulename, url):
+    self.modulename = modulename
+    self.url = url
+    message = u_("Module '%s' is not installed.") % self.modulename
+    if self.url:
+      message += u_("  You can download it from %s.") % self.url
+    Error.__init__ (self, message)
+
 class InvalidFormatError (Error):
   # Raised if the Connections Definition File is
   # in an unreadable format.

Modified: trunk/gnue-common/src/datasources/drivers/DBSIG2/__init__.py
===================================================================
--- trunk/gnue-common/src/datasources/drivers/DBSIG2/__init__.py        
2004-03-30 18:30:01 UTC (rev 5576)
+++ trunk/gnue-common/src/datasources/drivers/DBSIG2/__init__.py        
2004-03-30 19:25:36 UTC (rev 5577)
@@ -19,6 +19,9 @@
 # Copyright 2000-2004 Free Software Foundation
 #
 
+# Indicate that this is no plugin
+__noplugin__ = True
+
 from Connection import *
 from DataObject import *
 from ResultSet import *

Modified: 
trunk/gnue-common/src/datasources/drivers/adodbapi/adodbapi/Connection.py
===================================================================
--- trunk/gnue-common/src/datasources/drivers/adodbapi/adodbapi/Connection.py   
2004-03-30 18:30:01 UTC (rev 5576)
+++ trunk/gnue-common/src/datasources/drivers/adodbapi/adodbapi/Connection.py   
2004-03-30 19:25:36 UTC (rev 5577)
@@ -38,20 +38,18 @@
 from gnue.common.apps import GDebug
 from gnue.common.datasources.drivers import DBSIG2
 from DataObject import *
-from gnue.common.datasources.drivers.adodbapi.Schema.Discovery.Introspection 
import Introspection
 
 try:
   import adodbapi as SIG2api
-except ImportError, message:
-  tmsg = _("Driver not installed: adodbapi driver\n\n[%s]") % message
-  raise GConnections.AdapterNotInstalled, tmsg
+except ImportError:
+  raise GConnections.DependencyError, ('adodbapi', None)
 
 try:
   import win32com
-except ImportError, message:
-  tmsg = _("Driver not installed: win32com driver\n\n[%s") % message
-  raise GConnections.AdapterNotInstalled, tmsg
+except ImportError:
+  raise GConnections.DependencyError, ('win32com', None)
 
+from gnue.common.datasources.drivers.adodbapi.Schema.Discovery.Introspection 
import Introspection
 
 class Connection(DBSIG2.Connection):
   defaultBehavior = Introspection

Modified: trunk/gnue-common/src/datasources/drivers/db2/db2/Connection.py
===================================================================
--- trunk/gnue-common/src/datasources/drivers/db2/db2/Connection.py     
2004-03-30 18:30:01 UTC (rev 5576)
+++ trunk/gnue-common/src/datasources/drivers/db2/db2/Connection.py     
2004-03-30 19:25:36 UTC (rev 5577)
@@ -38,19 +38,17 @@
 import sys
 
 from string import lower
-# from gnue.forms import GFOptions
-from gnue.forms.GFError import DBError
 from gnue.common.apps import GDebug
 from gnue.common.datasources import GDataObjects
+from gnue.common.datasources import GConnections
 from gnue.common.datasources.drivers import DBSIG2
 
 try:
   import DB2
-except ImportError, message:
-  tmsg = _("Driver not installed: db2 for DB2 [%s]") % message
-  raise GConnections.AdapterNotInstalled, tmsg
+except ImportError:
+  raise GConnections.DependencyError, ('db2', None)
 
-from gnue.common.datasources.drivers.sqlite.Schema.Discovery.Introspection 
import Introspection
+from gnue.common.datasources.drivers.db2.Schema.Discovery.Introspection import 
Introspection
 
 class Connection(DBSIG2.DataObject):
   _driver = DB2

Modified: trunk/gnue-common/src/datasources/drivers/dbf/dbf/Connection.py
===================================================================
--- trunk/gnue-common/src/datasources/drivers/dbf/dbf/Connection.py     
2004-03-30 18:30:01 UTC (rev 5576)
+++ trunk/gnue-common/src/datasources/drivers/dbf/dbf/Connection.py     
2004-03-30 19:25:36 UTC (rev 5577)
@@ -36,10 +36,15 @@
 ####                                   ####
 
 from gnue.common.datasources.GDataObjects import Error
-from gnue.common.datasource import GConnection
-import dbf
+from gnue.common.datasources.drivers import Base
+from gnue.common.datasources import GConnections
 
-class Connection(GConnection.Connection):
+try:
+  import dbf
+except ImportError:
+  raise GConnections.DependencyError, ('dbf', None)
+
+class Connection(Base.Connection):
   supportedDataObjects = {'object': DataObject,
                            'static': DataObject} # TODO: Why static?!?
   _DatabaseError = Error

Modified: trunk/gnue-common/src/datasources/drivers/gadfly/gadfly/Connection.py
===================================================================
--- trunk/gnue-common/src/datasources/drivers/gadfly/gadfly/Connection.py       
2004-03-30 18:30:01 UTC (rev 5576)
+++ trunk/gnue-common/src/datasources/drivers/gadfly/gadfly/Connection.py       
2004-03-30 19:25:36 UTC (rev 5577)
@@ -39,17 +39,15 @@
 import string
 import sys
 from gnue.common.apps import GDebug
-from gnue.common.datasources import GDataObjects
+from gnue.common.datasources import GDataObjects, GConnections
 from gnue.common.datasources.drivers import DBSIG2
 
 try:
   import gadfly
-except ImportError, message:
-  tmsg = _("Driver not installed: gadfly driver\n\n[%s") % message
-  raise GConnections.AdapterNotInstalled, tmsg
+except ImportError:
+  raise GConnections.DependencyError, ('gadfly', None)
 
 
-
 ##### EVIL HACK
 class Error(StandardError):
   """Generic Error"""

Modified: 
trunk/gnue-common/src/datasources/drivers/informix/informix/Connection.py
===================================================================
--- trunk/gnue-common/src/datasources/drivers/informix/informix/Connection.py   
2004-03-30 18:30:01 UTC (rev 5576)
+++ trunk/gnue-common/src/datasources/drivers/informix/informix/Connection.py   
2004-03-30 19:25:36 UTC (rev 5577)
@@ -47,12 +47,10 @@
 
 try:
   import informixdb as SIG2api
-except ImportError, message:
-  tmsg = _("Driver not installed: Kinfxdb for Informix [%s]") % message
-  raise GConnections.AdapterNotInstalled, tmsg
+except ImportError:
+  raise GConnections.DependencyError, ('Kinfxdb', None)
 
 
-
 class Connection(DBSIG2.Connection):
 
   _driver = SIG2api

Modified: trunk/gnue-common/src/datasources/drivers/ingres/ingres/Connection.py
===================================================================
--- trunk/gnue-common/src/datasources/drivers/ingres/ingres/Connection.py       
2004-03-30 18:30:01 UTC (rev 5576)
+++ trunk/gnue-common/src/datasources/drivers/ingres/ingres/Connection.py       
2004-03-30 19:25:36 UTC (rev 5577)
@@ -45,16 +45,14 @@
 from gnue.common.datasources import GDataObjects, GConditions
 from gnue.common.apps import GDebug
 from gnue.common.datasources.drivers import DBSIG2
-from DataObjects import *
+from DataObject import *
 
 try:
   import ingmod as SIG2api
-except ImportError, message:
-  tmsg = _("Driver not installed: ingmod for Ingres/Ingres II/OpenIngres 
[%s]") % message
-  raise GConnections.AdapterNotInstalled, tmsg
+except ImportError:
+  raise GConnections.DependencyError, ('ingmod', None)
 
 
-
 class Connection(DBSIG2.Connection):
   _driver = SIG2api
   _DatabaseError = SIG2api.DatabaseError

Modified: 
trunk/gnue-common/src/datasources/drivers/interbase/interbase/Connection.py
===================================================================
--- trunk/gnue-common/src/datasources/drivers/interbase/interbase/Connection.py 
2004-03-30 18:30:01 UTC (rev 5576)
+++ trunk/gnue-common/src/datasources/drivers/interbase/interbase/Connection.py 
2004-03-30 19:25:36 UTC (rev 5577)
@@ -51,9 +51,8 @@
 
 try:
   import kinterbasdb as SIG2api
-except ImportError, message:
-  tmsg = _("Driver not installed: Kinterbasdb for Interbase [%s]") % message
-  raise GConnections.AdapterNotInstalled, tmsg
+except ImportError:
+  raise GConnections.DependencyError, ('Kinterbasdb', None)
 
 
 ######################################################################

Modified: trunk/gnue-common/src/datasources/drivers/ldap/Driver.py
===================================================================
--- trunk/gnue-common/src/datasources/drivers/ldap/Driver.py    2004-03-30 
18:30:01 UTC (rev 5576)
+++ trunk/gnue-common/src/datasources/drivers/ldap/Driver.py    2004-03-30 
19:25:36 UTC (rev 5577)
@@ -42,7 +42,7 @@
 
 try:
   from gnue.common.apps import GDebug
-  from gnue.common.datasources import GDataObjects, GConditions
+  from gnue.common.datasources import GDataObjects, GConditions, GConnections
 except: 
   from gnue.common import GDebug,GDataObjects,GConditions
 
@@ -54,10 +54,8 @@
 try:
   import ldap
 except ImportError:
-  print """
-to use the ldap/DBdriver you need the LDAP module for Python
-from http://python-ldap.sourceforge.net/
-"""
+  raise GConnections.DependencyError, ('python-ldap',
+                                       'http://python-ldap.sourceforge.net/')
 
 ## TODO: add an option to parse multiple entries
 

Modified: trunk/gnue-common/src/datasources/drivers/mysql/mysql/Connection.py
===================================================================
--- trunk/gnue-common/src/datasources/drivers/mysql/mysql/Connection.py 
2004-03-30 18:30:01 UTC (rev 5576)
+++ trunk/gnue-common/src/datasources/drivers/mysql/mysql/Connection.py 
2004-03-30 19:25:36 UTC (rev 5577)
@@ -42,14 +42,10 @@
 
 try:
   import MySQLdb
-except ImportError, message:
-  tmsg = _("\nCould not load MySQLdb.  For MySQL support, please install \n") \
-       + _("mysql-python 0.9.0 or later from") \
-       + "http://sourceforge.net/projects/mysql-python\n"; \
-       + _("[Error:  %s]") % message
+except ImportError:
+  raise GConnections.DependencyError ('mysql-python',
+                                'http://sourceforge.net/projects/mysql-python')
 
-  raise GConnections.AdapterNotInstalled, tmsg
-
 from gnue.common.datasources.drivers import DBSIG2
 from DataObject import *
 from gnue.common.datasources.drivers.mysql.Schema.Discovery.Introspection 
import Introspection

Modified: trunk/gnue-common/src/datasources/drivers/odbc/wodbc/Connection.py
===================================================================
--- trunk/gnue-common/src/datasources/drivers/odbc/wodbc/Connection.py  
2004-03-30 18:30:01 UTC (rev 5576)
+++ trunk/gnue-common/src/datasources/drivers/odbc/wodbc/Connection.py  
2004-03-30 19:25:36 UTC (rev 5577)
@@ -48,13 +48,10 @@
 
 try:
   import dbi, odbc
-except ImportError, message:
-  tmsg = _("Driver not installed: win32all ODBC driver\n\n[%s") % message
-  raise GConnections.AdapterNotInstalled, tmsg
+except ImportError:
+  raise GConnections.DependencyError, ('win32all ODBC driver', None)
 
 
-
-
 class ODBC_RecordSet(GDataObjects.RecordSet):
   def _postChanges(self):
     if not self.isPending(): return

Modified: trunk/gnue-common/src/datasources/drivers/oracle/cxoracle/Driver.py
===================================================================
--- trunk/gnue-common/src/datasources/drivers/oracle/cxoracle/Driver.py 
2004-03-30 18:30:01 UTC (rev 5576)
+++ trunk/gnue-common/src/datasources/drivers/oracle/cxoracle/Driver.py 
2004-03-30 19:25:36 UTC (rev 5577)
@@ -27,14 +27,13 @@
 #
 
 
-from gnue.common.datasources import Exceptions
+from gnue.common.datasources import GConnections
 from gnue.common.datasources.drivers.oracle import Base
 
 try:
   import cx_Oracle as SIG2api
-except ImportError, message:
-  tmsg = _("Driver not installed: cx_Oracle for Oracle 8.x [%s]") % message
-  raise Exceptions.AdapterNotInstalled, tmsg
+except ImportError:
+  raise GConnections.DependencyError, ('cx_Oracle', None)
 
 class Connection(Base.Connection):
   _driver = SIG2api

Modified: trunk/gnue-common/src/datasources/drivers/oracle/dcoracle/Driver.py
===================================================================
--- trunk/gnue-common/src/datasources/drivers/oracle/dcoracle/Driver.py 
2004-03-30 18:30:01 UTC (rev 5576)
+++ trunk/gnue-common/src/datasources/drivers/oracle/dcoracle/Driver.py 
2004-03-30 19:25:36 UTC (rev 5577)
@@ -27,14 +27,13 @@
 #
 
 
-from gnue.common.datasources import Exceptions
+from gnue.common.datasources import GConnections
 from gnue.common.datasources.drivers.oracle import Base
 
 try:
   import DCOracle2 as SIG2api
-except ImportError, message:
-  tmsg = _("Driver not installed: DCOracle2 [%s]") % message
-  raise GConnections.AdapterNotInstalled, tmsg
+except ImportError:
+  raise GConnections.DependencyError ('DCOracle2', None)
 
 class Connection(Base.Connection):
   _driver = SIG2api

Modified: trunk/gnue-common/src/datasources/drivers/postgresql/popy/Driver.py
===================================================================
--- trunk/gnue-common/src/datasources/drivers/postgresql/popy/Driver.py 
2004-03-30 18:30:01 UTC (rev 5576)
+++ trunk/gnue-common/src/datasources/drivers/postgresql/popy/Driver.py 
2004-03-30 19:25:36 UTC (rev 5577)
@@ -31,7 +31,12 @@
 __all__ = ('Connection')
 
 from gnue.common.datasources.drivers.postgresql import Base
-import PoPy
+from gnue.common.datasources import GConnections
 
+try:
+  import PoPy
+except ImportError:
+  raise GConnections.DependencyError, ('PoPy', None)
+
 class Connection(Base.Connection):
   _driver = PoPy

Modified: trunk/gnue-common/src/datasources/drivers/postgresql/psycopg/Driver.py
===================================================================
--- trunk/gnue-common/src/datasources/drivers/postgresql/psycopg/Driver.py      
2004-03-30 18:30:01 UTC (rev 5576)
+++ trunk/gnue-common/src/datasources/drivers/postgresql/psycopg/Driver.py      
2004-03-30 19:25:36 UTC (rev 5577)
@@ -31,7 +31,12 @@
 __all__ = ('Connection')
 
 from gnue.common.datasources.drivers.postgresql import Base
-import psycopg
+from gnue.common.datasources import GConnections
 
+try:
+  import psycopg
+except:
+  raise GConnections.DependencyError, ('psycopg', None)
+
 class Connection(Base.Connection):
   _driver = psycopg

Modified: 
trunk/gnue-common/src/datasources/drivers/postgresql/pygresql/Driver.py
===================================================================
--- trunk/gnue-common/src/datasources/drivers/postgresql/pygresql/Driver.py     
2004-03-30 18:30:01 UTC (rev 5576)
+++ trunk/gnue-common/src/datasources/drivers/postgresql/pygresql/Driver.py     
2004-03-30 19:25:36 UTC (rev 5577)
@@ -36,9 +36,8 @@
 try:
   import pgdb
   from _pg import error as PGError   # This is so we can catch login errors
-except ImportError, message:
-  tmsg = _("Driver not installed: pygresql for PostgreSQL [%s]") % message
-  raise GConnections.AdapterNotInstalled, tmsg
+except ImportError:
+  raise GConnections.DependencyError, ('pygresql', None)
 
 from gnue.common.datasources.drivers.postgresql import Base
 

Modified: trunk/gnue-common/src/datasources/drivers/postgresql/pypgsql/Driver.py
===================================================================
--- trunk/gnue-common/src/datasources/drivers/postgresql/pypgsql/Driver.py      
2004-03-30 18:30:01 UTC (rev 5576)
+++ trunk/gnue-common/src/datasources/drivers/postgresql/pypgsql/Driver.py      
2004-03-30 19:25:36 UTC (rev 5577)
@@ -36,10 +36,13 @@
 from gnue.common.datasources.drivers.postgresql import Base
 
 try:
-  from pyPgSQL import PgSQL # pyPgSQL 2.0 support
-except ImportError:
-  # TODO: Re-evaluate the minimum version we support!
-  import PgSQL              # pyPgSQL 1.6 support
+  try:
+    from pyPgSQL import PgSQL # pyPgSQL 2.0 support
+  except ImportError:
+    # TODO: Re-evaluate the minimum version we support!
+    import PgSQL              # pyPgSQL 1.6 support
+except:
+  raise GConnections.DependencyError, ('pyPgSQL', None)
 
 
 

Modified: trunk/gnue-common/src/datasources/drivers/sapdb/sapdb/Connection.py
===================================================================
--- trunk/gnue-common/src/datasources/drivers/sapdb/sapdb/Connection.py 
2004-03-30 18:30:01 UTC (rev 5576)
+++ trunk/gnue-common/src/datasources/drivers/sapdb/sapdb/Connection.py 
2004-03-30 19:25:36 UTC (rev 5577)
@@ -52,9 +52,8 @@
 
 try:
   import sapdbapi as SIG2api
-except ImportError, message:
-  tmsg = _("Driver not installed: sapdbapi for MaxDB/SAP-DB 7.x \n[%s]") % 
message
-  raise GConnections.AdapterNotInstalled, tmsg
+except ImportError:
+  raise GConnections.DependencyError, ('sapdbapi', None)
 
 from gnue.common.datasources.drivers.sapdb.Schema.Discovery.Introspection 
import Introspection
 

Modified: trunk/gnue-common/src/datasources/drivers/sqlite/sqlite/Connection.py
===================================================================
--- trunk/gnue-common/src/datasources/drivers/sqlite/sqlite/Connection.py       
2004-03-30 18:30:01 UTC (rev 5576)
+++ trunk/gnue-common/src/datasources/drivers/sqlite/sqlite/Connection.py       
2004-03-30 19:25:36 UTC (rev 5577)
@@ -47,9 +47,8 @@
 
 try:
   import sqlite as SIG2api
-except ImportError, message:
-  tmsg = _("Driver not installed: SQLitedbapi for SQLite 7.x \n[%s]") % message
-  raise GConnections.AdapterNotInstalled, tmsg
+except ImportError:
+  raise GConnections.DependencyError, ('SQLitedbapi', None)
 
 from gnue.common.datasources.drivers.sqlite.Schema.Discovery.Introspection 
import Introspection
 

Modified: 
trunk/gnue-common/src/datasources/drivers/sqlrelay/sqlrelay/Connection.py
===================================================================
--- trunk/gnue-common/src/datasources/drivers/sqlrelay/sqlrelay/Connection.py   
2004-03-30 18:30:01 UTC (rev 5576)
+++ trunk/gnue-common/src/datasources/drivers/sqlrelay/sqlrelay/Connection.py   
2004-03-30 19:25:36 UTC (rev 5577)
@@ -49,9 +49,8 @@
 
 try:
   from SQLRelay import PySQLRDB as SIG2api
-except ImportError, message:
-  tmsg = _("Driver not installed: SQLRelay Python API\n[%s]") % message
-  raise GConnections.AdapterNotInstalled, tmsg
+except ImportError:
+  raise GConnections.DependencyError, ('SQLRelay', None)
 
 
 from gnue.common.datasources.drivers.sqlrelay.Schema.Discovery.Introspection 
import Introspection

Modified: trunk/gnue-common/src/datasources/drivers/sybase/sybase/Connection.py
===================================================================
--- trunk/gnue-common/src/datasources/drivers/sybase/sybase/Connection.py       
2004-03-30 18:30:01 UTC (rev 5576)
+++ trunk/gnue-common/src/datasources/drivers/sybase/sybase/Connection.py       
2004-03-30 19:25:36 UTC (rev 5577)
@@ -45,13 +45,12 @@
 from gnue.common.datasources import GDataObjects, GConditions, GConnections
 from gnue.common.apps import GDebug
 from gnue.common.datasources.drivers import DBSIG2
-from DataObjects import *
+from DataObject import *
 
 try:
   import Sybase as SIG2api
-except ImportError, message:
-  tmsg = _("Driver not installed: Sybase.py for Sybase ASE 11.0/11.9 [%s]") % 
message
-  raise GConnections.AdapterNotInstalled, tmsg
+except ImportError:
+  raise GConnections.DependencyError, ('Sybase.py', None)
 
 
 class Connection(DBSIG2.Connection):