diff options
Diffstat (limited to 'lib/sqlalchemy/engine')
| -rw-r--r-- | lib/sqlalchemy/engine/ddl.py | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/sqlalchemy/engine/ddl.py b/lib/sqlalchemy/engine/ddl.py index 6035e2901..c61a9d59c 100644 --- a/lib/sqlalchemy/engine/ddl.py +++ b/lib/sqlalchemy/engine/ddl.py @@ -21,7 +21,7 @@ class SchemaGenerator(DDLBase): tables=None, **kwargs): super(SchemaGenerator, self).__init__(connection, **kwargs) self.checkfirst = checkfirst - self.tables = tables and set(tables) or None + self.tables = tables self.preparer = dialect.identifier_preparer self.dialect = dialect self.memo = {} @@ -49,7 +49,7 @@ class SchemaGenerator(DDLBase): ) def visit_metadata(self, metadata): - if self.tables: + if self.tables is not None: tables = self.tables else: tables = metadata.tables.values() @@ -117,7 +117,7 @@ class SchemaDropper(DDLBase): self.memo = {} def visit_metadata(self, metadata): - if self.tables: + if self.tables is not None: tables = self.tables else: tables = metadata.tables.values() |