Flask SqlAlchemy Classical Mappings MAny To Many [closed] - python

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I would like to see some example about classical mappings and many to many relations in SQLAlchemy.
Can someone help me?
Thanks!

You can find multiple examples here: http://docs.sqlalchemy.org/en/latest/orm/examples.html
Association proxy is the most common many-to-many pattern, see example at http://docs.sqlalchemy.org/en/latest/_modules/examples/association/proxied_association.html

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