diff options
Diffstat (limited to 'lib/sqlalchemy/engine/default.py')
| -rw-r--r-- | lib/sqlalchemy/engine/default.py | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/sqlalchemy/engine/default.py b/lib/sqlalchemy/engine/default.py index 9ec6783b0..b6dae6abc 100644 --- a/lib/sqlalchemy/engine/default.py +++ b/lib/sqlalchemy/engine/default.py @@ -612,8 +612,10 @@ class DefaultDialect(interfaces.Dialect): if trans_objs: if connection._is_future: raise exc.InvalidRequestError( - "This connection has already begun a transaction; " - "%s may not be altered until transaction end" + "This connection has already initialized a SQLAlchemy " + "Transaction() object via begin() or autobegin; " + "%s may not be altered unless rollback() or commit() " + "is called first." % (", ".join(name for name, obj in trans_objs)) ) else: |