old_contents: from server import app
  from .model import Student
  
  
  @app.route('/')
  def show_entries():
      ringo = Student.query.filter(Student.name_first == 'Ringo').one()
      import pdb; pdb.set_trace()
      return ringo.name_first
  
new_contents: from server import app
  from .model import Student
  
  
  @app.route('/')
  def show_entries():
      ringo = Student.query.filter(Student.name_first == 'Ringo').one()
      return ringo.name_first
  
subject: remove pdb