text: import os
  from app import create_app,db
  from app.models import User,Product,Post
  from flask_script import Shell,Manager
  from flask_migrate import Migrate,MigrateCommand
  
  app = create_app('default')
  manager = Manager(app)
  migrate = Migrate(app,db)
  
  def make_shell_context():
      return dict(app=app,db=db,User=User,Product=Product,Post=Post)
  
  manager.add_command('shell',Shell(make_context=make_shell_context))
  manager.add_command('db',MigrateCommand)
  
  @manager.command
  def make_fixtures():
      from app.fake import posts,users
      users(count=20)
      posts()
  
  if __name__ == "__main__":
      manager.run()