Recognize more Firebird disconnection cases, fixing #1646 on trunk

1 files changed, 3 insertions, 4 deletions

diff --git a/lib/sqlalchemy/dialects/firebird/kinterbasdb.py b/lib/sqlalchemy/dialects/firebird/kinterbasdb.py
index c804af05f..6f7940207 100644
--- a/lib/sqlalchemy/dialects/firebird/kinterbasdb.py
+++ b/lib/sqlalchemy/dialects/firebird/kinterbasdb.py
@@ -90,11 +90,10 @@ class Firebird_kinterbasdb(FBDialect):
         return tuple([int(x) for x in m.group(5, 6, 4)])
 
     def is_disconnect(self, e):
-        if isinstance(e, self.dbapi.OperationalError):
-            return 'Unable to complete network request to host' in str(e)
-        elif isinstance(e, self.dbapi.ProgrammingError):
+        if isinstance(e, (self.dbapi.OperationalError, self.dbapi.ProgrammingError)):
             msg = str(e)
-            return ('Invalid connection state' in msg or
+            return ('Unable to complete network request to host' in msg or
+                    'Invalid connection state' in msg or
                     'Invalid cursor state' in msg)
         else:
             return False