old_contents: import os
  import sys
  
  from st2common.runners.base_action import Action
  
  
  class PythonPathAction(Action):
      def run(self, *args, **kwargs):
          pythonpath = os.environ.get("PYTHONPATH")
          if pythonpath:
              pythonpath = pythonpath.split(":")
          return {
              "PYTHONPATH": pythonpath,
              "sys.path": sys.path,
          }
  
new_contents: #!/usr/bin/python
  
  # Copyright 2020 The StackStorm Authors.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  import os
  import sys
  
  from st2common.runners.base_action import Action
  
  
  class PythonPathAction(Action):
      def run(self, *args, **kwargs):
          pythonpath = os.environ.get("PYTHONPATH")
          if pythonpath:
              pythonpath = pythonpath.split(":")
          return {
              "PYTHONPATH": pythonpath,
              "sys.path": sys.path,
          }
  
subject: Add license header to pythonpath.py