make import of sqlalchemy's SchemaGenerator work regardless of previous imports

1 files changed, 1 insertions, 1 deletions

diff --git a/migrate/changeset/ansisql.py b/migrate/changeset/ansisql.py
index 30622da..34a34bc 100644
--- a/migrate/changeset/ansisql.py
+++ b/migrate/changeset/ansisql.py
@@ -4,10 +4,10 @@ happen to work with multiple databases.
 """
 import sqlalchemy as sa
 from sqlalchemy.engine.base import Connection, Dialect
+from sqlalchemy.sql.compiler import SchemaGenerator
 from migrate.changeset import constraint,exceptions
 
 SchemaIterator = sa.engine.SchemaIterator
-SchemaGenerator = sa.sql.compiler.SchemaGenerator
 
 class RawAlterTableVisitor(object):
     """Common operations for 'alter table' statements"""