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.
diff --git a/Lib/dircache.py b/Lib/dircache.py
index 08b127a..a999743 100644
--- a/Lib/dircache.py
+++ b/Lib/dircache.py
@@ -6,6 +6,8 @@
import os
+__all__ = ["listdir","opendir","annotate"]
+
cache = {}
def listdir(path):