diff --git a/nodes/PythonFunction/script.template.py b/nodes/PythonFunction/script.template.py
old mode 100644
new mode 100755
index 0ae95b0..a11c97d
--- a/nodes/PythonFunction/script.template.py
+++ b/nodes/PythonFunction/script.template.py
@@ -1,25 +1,35 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+import atexit;
 import fire
 import json
+import os;
 import sys
 from pathlib import Path
 
+@atexit.register
+def cleanup():
+  if os.path.exists(__file__):
+    os.remove(__file__);
+  # end if
+# end cleanup()
 
 def snippet_runner(items: list, env_vars: dict) -> list:
-	# ...code snippet
-	# should return items
-	# <%- codeSnippet %>
-	pass
+  # ...code snippet
+  # should return items
+  # <%- codeSnippet %>
+  pass
 
 def main(json_path: str, env_vars: dict = {}) -> None:
-	with open(Path(json_path), 'r') as json_file:
-		items: list = json.load(json_file)
-		new_items = snippet_runner(items, env_vars)
-		assert type(new_items) is list or isinstance(new_items, list), "code snippet should return a list"
-		# print('```', json.dumps(new_items), '```')
-		# sys.stdout.write(json.dumps(new_items))
-		sys.stderr.write(json.dumps(new_items))
-		exit(0)
+  with open(Path(json_path), 'r') as json_file:
+    items: list = json.load(json_file)
+    new_items = snippet_runner(items, env_vars)
+    assert type(new_items) is list or isinstance(new_items, list), "code snippet should return a list"
+    # print('```', json.dumps(new_items), '```')
+    # sys.stdout.write(json.dumps(new_items))
+    sys.stderr.write(json.dumps(new_items))
+    exit(0)
 
 
 if __name__ == "__main__":
-	fire.Fire(main)
+  fire.Fire(main)