blogR | Scripts data to recreate analyses published on http | Data Visualization library

But the if around the loop:

Read https://docs.sqlalchemy.org/en/latest/orm/inheritance.html#concrete-table-inheritance more closely (emphasis added):

Two critical points should be noted:

We must define all columns explicitly on each subclass, even those of the same name. A column such as Employee.name here is not copied out to the tables mapped by Manager or Engineer for us.

while the Engineer and Manager classes are mapped in an inheritance relationship with Employee, they still do not include polymorphic loading. Meaning, if we query for Employee objects, the manager and engineer tables are not queried at all.

Assuming you walked through all the previous steps in the tutorial including 1. Create your pyramid_blogr project structure and Adding model definitions, you would know that BlogRecord is an object or an instance of the class BlogRecord which inherits from the SQLAlchemy metadata Base class defined in models.meta which was created using the alchemy cookiecutter. This line: