# HG changeset patch
# User mpm@selenic.com
# Date 1125047015 25200
# Node ID fed8d078840bf6626bd6b0ec30e8e0c25b38e648
# Parent  e453d2053b2e8b4bffb6a19251dee50340cefdfc
Fix set type usage for Python 2.3



diff --git a/mercurial/commands.py b/mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -9,7 +9,7 @@ from demandload import demandload
 demandload(globals(), "os re sys signal shutil")
 demandload(globals(), "fancyopts ui hg util lock")
 demandload(globals(), "fnmatch hgweb mdiff random signal time traceback")
-demandload(globals(), "errno socket version struct atexit")
+demandload(globals(), "errno socket version struct atexit sets")
 
 class UnknownCommand(Exception):
     """Exception raised if command is not in the command table."""
@@ -841,7 +841,7 @@ def grep(ui, repo, pattern = None, *pats
 
     prev = {}
     def display(fn, rev, states, prevstates):
-        diff = list(set(states).symmetric_difference(set(prevstates)))
+        diff = list(sets.Set(states).symmetric_difference(sets.Set(prevstates)))
         diff.sort(lambda x, y: cmp(x.linenum, y.linenum))
         for l in diff:
             if incrementing: