old_contents: #!flask/bin/python
  from app import app
  #app.run(debug = True)
  #app.run(host="127.0.0.1",port="5000")
  app.run(host="23.239.20.13",port="5000")
  
new_contents: #!flask/bin/python
  from app import app
  #app.run(debug = True)
  app.run(host="127.0.0.1",port="5000")
  #app.run(host="23.239.20.13",port="5000")
  
subject: change host name