Original code copyright (C) 2009-2022 Rudolf Cardinal (

This file is part of cardinal_pythonlib.

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Class to refer to database tables either by name or by SQLAlchemy Table object.

class cardinal_pythonlib.sqlalchemy.table_identity.TableIdentity(tablename: str | None = None, table: Table | None = None, metadata: MetaData | None = None)[source]

Convenient way of passing around SQLAlchemy Table objects when you might know either either its name or the Table object itself.

Initialize with either tablename or table, not both.

  • tablename – string name of the table

  • table – SQLAlchemy Table object

  • metadata – optional MetaData object

set_metadata(metadata: MetaData) None[source]

Sets the MetaData.

set_metadata_if_none(metadata: MetaData) None[source]

Sets the MetaData unless it was set already.

property table: Table

Returns a SQLAlchemy Table object. This is either the Table object that was used for initialization, or one that was constructed from the tablename plus the metadata.

property tablename: str

Returns the string name of the table.