Breaking News: Grepper is joining You.com. Read the official announcement!

sqlalchemy.exc.ArgumentError: Mapper mapped class Students_of_teacher->students_of_teacher could not assemble any primary key columns for mapped table 'students_of_teacher'

namesaq answered on August 21, 2021 Popularity 7/10 Helpfulness 2/10

answer sqlalchemy.exc.ArgumentError: Mapper mapped class Students_of_teacher->students_of_teacher could not assemble any primary key columns for mapped table 'students_of_teacher'

sqlalchemy.exc.ArgumentError: Mapper mapped class Students_of_teacher->students_of_teacher could not assemble any primary key columns for mapped table 'students_of_teacher'

Comment

Hi,
As the exception message says, sqlalchemy "could not assemble any primary key columns for mapped table 'users'". The sqlalchemy orm needs a primary key for each mapped table.
See https://docs.sqlalchemy.org/en/14/core/metadata.html#sqlalchemy.schema.Column.params.primary_key for how to set a primary key on a column

Popularity 7/10 Helpfulness 2/10 Language sql

Source: github.com

Tags: any assemble class mapper primary-key sql

Link to this answer
Share Copy Link

Contributed on Aug 21 2021

namesaq

0 Answers Avg Quality 2/10

Continue with Google

By continuing, I agree that I have read and agree to Greppers's Terms of Service and Privacy Policy.

sqlalchemy.exc.ArgumentError: Mapper mapped class Students_of_teacher->students_of_teacher could not assemble any primary key columns for mapped table 'students_of_teacher'

Contents

More Related Answers

sqlalchemy.exc.ArgumentError: Mapper mapped class Students_of_teacher->students_of_teacher could not assemble any primary key columns for mapped table 'students_of_teacher'

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.