SQLAlchemy – errors

1 min


Description of some errors and their solution in SQLAlchemy.

could not assemble any primary key columns for mapped table

sqlalchemy.exc.ArgumentError: Mapper mapped class UserSetting-> user_settings could not assemble any primary key columns for mapped table ‘user_settings’

For SQLAlchemy to work, each table must have a primary key. Add our tables to the models primary_key = True


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