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-rw-r--r--lib/sqlalchemy/engine/default.py9
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/sqlalchemy/engine/default.py b/lib/sqlalchemy/engine/default.py
index 763e85f82..9330a602c 100644
--- a/lib/sqlalchemy/engine/default.py
+++ b/lib/sqlalchemy/engine/default.py
@@ -157,6 +157,15 @@ class DefaultDialect(interfaces.Dialect):
reflection_options = ()
+ dbapi_exception_translation_map = util.immutabledict()
+ """mapping used in the extremely unusual case that a DBAPI's
+ published exceptions don't actually have the __name__ that they
+ are linked towards.
+
+ .. versionadded:: 1.0.5
+
+ """
+
def __init__(self, convert_unicode=False,
encoding='utf-8', paramstyle=None, dbapi=None,
implicit_returning=None,