new_contents: from sqlalchemy import create_engine
  from sqlalchemy.orm import sessionmaker
  
  from db_setup import Base, Listing, Location
  
  engine = create_engine('sqlite:///listings.db')
  Base.metadata.bind = engine
  
  DBSession = sessionmaker(bind=engine)
  
  session = DBSession()
  
  pawn = Location(name="Pawn Stars") 
  
  store = Location(name="Storage Wars") 
  
  session.add(pawn)
  session.add(store)
  
  session.commit()
  
  # -----
  listings = []
  
  listings.append( Listing (location = store, name = "Gold Glasses", description = "worn by the man himself", price = 92) )
  
  listings.append( Listing (location = pawn, name = 'Lock of Hair', price = 18) )
  
  listings.append( Listing (location = pawn, name = "Samuel L Jackson's arm", description = "An arm found lying on the ground next to a raptor cage", price = 18) )
  
  for item in listings:
      session.add(item)
  
  session.commit()
subject: add database population script