How to get Column from Table using Bracket Notation in declarative SQLAlchemy 2.0

Question

I use python SQLAlchemy 2.0 ORM in declarative style to define my tables like such:

from sqlalchemy.orm import DeclarativeBase
from sqlalchemy import select

class Example(DeclarativeBase):
    __tablename__ = 'example'
    foo = mapped_column(Text, nullable=False)

I know that I can access table column in queries using "dot notation":

select(Example.foo).select_from(Example)

Is there some way to also access tables using "bracket notation"? This might look like the following:

select(Example['foo']).select_from(Example)

Asked By: Martin Reindl

||

Source

Answer 1

This ended up working for me:

select(Example.__table__.c['foo']).select_from(Example)

Answered By: Martin Reindl

How to get Column from Table using Bracket Notation in declarative SQLAlchemy 2.0

Question:

Answers: