perhaps

kacey.py

from sqlalchemy import func
    
    db.session.query(
        Material.id,
        Material.formula,
        func.count().label('calculations')
    ).join(
        Material.cell
    ).group_by(
        Material.id,
        Material.formula
    ).having(
        Material.forumla.like('%Cd%')
    )

L13: s/forumla/formula/
L8: s/cell/calc/