diff --git a/src/pl/plpython/expected/plpython_error.out b/src/pl/plpython/expected/plpython_error.out
index f2bf34f996a..06043289fed 100644
--- a/src/pl/plpython/expected/plpython_error.out
+++ b/src/pl/plpython/expected/plpython_error.out
@@ -19,16 +19,3 @@ SELECT valid_type('rick');
  
 (1 row)
 
--- Security sandbox tests
-SELECT write_file('/tmp/plpython','Only trusted users should be able to do this!');
-          write_file          
-------------------------------
- Wrote to file: /tmp/plpython
-(1 row)
-
-SELECT read_file('/tmp/plpython');
-                   read_file                   
------------------------------------------------
- Only trusted users should be able to do this!
-(1 row)
-
diff --git a/src/pl/plpython/expected/plpython_function.out b/src/pl/plpython/expected/plpython_function.out
index def301affb1..cc1415dca8d 100644
--- a/src/pl/plpython/expected/plpython_function.out
+++ b/src/pl/plpython/expected/plpython_function.out
@@ -255,13 +255,6 @@ for r in rv:
 return seq
 '
 	LANGUAGE plpythonu;
-CREATE OR REPLACE FUNCTION read_file(text) RETURNS text AS '
-  return open(args[0]).read()
-' LANGUAGE plpythonu;
-CREATE OR REPLACE FUNCTION write_file(text,text) RETURNS text AS '
-  open(args[0],"w").write(args[1])
-  return "Wrote to file: %s" % args[0]
-' LANGUAGE plpythonu;
 --
 -- Universal Newline Support
 -- 
diff --git a/src/pl/plpython/sql/plpython_error.sql b/src/pl/plpython/sql/plpython_error.sql
index f1939eb8ffb..2f0486fed92 100644
--- a/src/pl/plpython/sql/plpython_error.sql
+++ b/src/pl/plpython/sql/plpython_error.sql
@@ -7,7 +7,3 @@ SELECT invalid_type_uncaught('rick');
 SELECT invalid_type_caught('rick');
 SELECT invalid_type_reraised('rick');
 SELECT valid_type('rick');
-
--- Security sandbox tests
-SELECT write_file('/tmp/plpython','Only trusted users should be able to do this!');
-SELECT read_file('/tmp/plpython');
diff --git a/src/pl/plpython/sql/plpython_function.sql b/src/pl/plpython/sql/plpython_function.sql
index c849c3e5b97..25ac388495a 100644
--- a/src/pl/plpython/sql/plpython_function.sql
+++ b/src/pl/plpython/sql/plpython_function.sql
@@ -298,15 +298,6 @@ return seq
 '
 	LANGUAGE plpythonu;
 
-CREATE OR REPLACE FUNCTION read_file(text) RETURNS text AS '
-  return open(args[0]).read()
-' LANGUAGE plpythonu;
-
-CREATE OR REPLACE FUNCTION write_file(text,text) RETURNS text AS '
-  open(args[0],"w").write(args[1])
-  return "Wrote to file: %s" % args[0]
-' LANGUAGE plpythonu;
-
 --
 -- Universal Newline Support
 --