From 1af8e2491dcbed723d2cdafd44fd37f1a6908e91 Mon Sep 17 00:00:00 2001
From: Mike Bayer <mike_mp@zzzcomputing.com>
Date: Sat, 18 Jan 2014 19:26:56 -0500
Subject: - implement kwarg validation and type system for dialect-specific
 arguments; [ticket:2866] - add dialect specific kwarg functionality to
 ForeignKeyConstraint, ForeignKey

---
 lib/sqlalchemy/exc.py | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'lib/sqlalchemy/exc.py')

diff --git a/lib/sqlalchemy/exc.py b/lib/sqlalchemy/exc.py
index fe6879b16..68e517e26 100644
--- a/lib/sqlalchemy/exc.py
+++ b/lib/sqlalchemy/exc.py
@@ -26,6 +26,9 @@ class ArgumentError(SQLAlchemyError):
 
     """
 
+class NoSuchModuleError(ArgumentError):
+    """Raised when a dynamically-loaded module (usually a database dialect)
+    of a particular name cannot be located."""
 
 class NoForeignKeysError(ArgumentError):
     """Raised when no foreign keys can be located between two selectables
-- 
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