old_contents: from weppy import App
  app = App(__name__)
  
  @app.route("/")
  def hello():
      return "Hello world!"
  
  if __name__ == "__main__":
      app.run()
  
new_contents: import pip
  try:
      from weppy import App
      from pydblite import Base
  except:
      pip.main(['install','weppy'])
      pip.main(['install','pydblite'])
      from weppy import App
      from pydblite import Base
  
  db = Base('test.pydb') # สร้างไฟล์ฐานข้อมูล test.pydb
  db.create('name', 'age', 'size') # สร้าง field เก็บข้อมูล
  app = App(__name__)
  
  @app.route("/")
  def hello():
      return "Hello world!"
  
  if __name__ == "__main__":
      app.run()
  
subject: add code pip install