Adjust for the fact that Python 2.5 doesn't have collections.MutableSet.
authorEvan Broder <broder@mit.edu>
Mon, 23 Nov 2009 04:06:44 +0000 (23:06 -0500)
committerEvan Broder <broder@mit.edu>
Mon, 23 Nov 2009 04:11:53 +0000 (23:11 -0500)
commit5f256964f30b0f7423034048b7911600f8d4c3a9
treebe55ca49c2e9662e3fc0d15b196a1835d7ac138b
parent76b00ab5bf3750a131294674c402ee17930b4309
Adjust for the fact that Python 2.5 doesn't have collections.MutableSet.

When the MutableSet mixin isn't available, we fall back on just
deriving from object. This means that comparisons between membership
sets like __le__ as well as operators like __or__ aren't available,
but it seems unlikely those will be used for manipulating the AFS
protection database.

Signed-off-by: Evan Broder <broder@mit.edu>
afs/pts.py