added __all__ lists to a number of Python modules

added test script and expected output file as well
this closes patch 103297.
__all__ attributes will be added to other modules without first submitting
a patch, just adding the necessary line to the test script to verify
more-or-less correct implementation.

1 files changed, 2 insertions, 0 deletions

diff --git a/Lib/atexit.py b/Lib/atexit.py
index b687cb4023..bcf7e548a0 100644
--- a/Lib/atexit.py
+++ b/Lib/atexit.py
@@ -5,6 +5,8 @@ upon normal program termination.
 One public function, register, is defined.
 """
 
+__all__ = ["register"]
+
 _exithandlers = []
 def _run_exitfuncs():
     """run any registered exit functions