added a few more __all__ lists
test___all__.py: fail silently in check_all if the module can't be imported
diff --git a/Lib/mimetools.py b/Lib/mimetools.py
index bb8a299..81913bd 100644
--- a/Lib/mimetools.py
+++ b/Lib/mimetools.py
@@ -5,6 +5,8 @@
 import rfc822
 import tempfile
 
+__all__ = ["Message","choose_boundary","encode","decode","copyliteral",
+           "copybinary"]
 
 class Message(rfc822.Message):
     """A derived class of rfc822.Message that knows about MIME headers and