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-rw-r--r--lib/sqlalchemy/exc.py3
1 files changed, 3 insertions, 0 deletions
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