old_contents: from flask import Flask, request
  import subprocess
  
  app = Flask(__name__)
  
  @app.route("/")
  def hello():
      return "Hello, World!"
  
  @app.route('/execute', methods=['POST'])
  def execute():
      with open('runtime.py', 'w') as f:
          f.write(request.values.get('code'))
      return subprocess.check_output(["python", "runtime.py"])
  
  app.debug=True
  
new_contents: from flask import Flask, request
  import subprocess
  
  app = Flask(__name__)
  
  @app.route("/")
  
  def hello():
      return "Hello, World!"
  
  @app.route('/execute', methods=['POST'])
  def execute():
      with open('runtime.py', 'w') as f:
          f.write(request.values.get('code'))
      return subprocess.check_output(["python", "runtime.py"])
  
  app.debug=True
  
subject: add change to run integrations