diff --git a/hgext/color.py b/hgext/color.py
--- a/hgext/color.py
+++ b/hgext/color.py
@@ -116,7 +116,7 @@ def colorstatus(orig, ui, repo, *pats, *
         lines = lines_with_status
 
     # apply color to output and display it
-    for i in xrange(0, len(lines)):
+    for i in xrange(len(lines)):
         status = _status_abbreviations[lines_with_status[i][0]]
         effects = _status_effects[status]
         if effects:
diff --git a/hgext/hgk.py b/hgext/hgk.py
--- a/hgext/hgk.py
+++ b/hgext/hgk.py
@@ -188,7 +188,7 @@ def revtree(ui, args, repo, full="tree",
             else:
                 i -= chunk
 
-            for x in xrange(0, chunk):
+            for x in xrange(chunk):
                 if i + x >= count:
                     l[chunk - x:] = [0] * (chunk - x)
                     break
diff --git a/hgext/mq.py b/hgext/mq.py
--- a/hgext/mq.py
+++ b/hgext/mq.py
@@ -1407,7 +1407,7 @@ class queue:
         series = []
         applied = []
         qpp = None
-        for i in xrange(0, len(lines)):
+        for i in xrange(len(lines)):
             if lines[i] == 'Patch Data:':
                 datastart = i + 1
             elif lines[i].startswith('Dirstate:'):
diff --git a/mercurial/repair.py b/mercurial/repair.py
--- a/mercurial/repair.py
+++ b/mercurial/repair.py
@@ -36,7 +36,7 @@ def _collectextranodes(repo, files, link
         extra = []
         startrev = count = len(revlog)
         # find the truncation point of the revlog
-        for i in xrange(0, count):
+        for i in xrange(count):
             lrev = revlog.linkrev(i)
             if lrev >= link:
                 startrev = i + 1
diff --git a/mercurial/revlog.py b/mercurial/revlog.py
--- a/mercurial/revlog.py
+++ b/mercurial/revlog.py
@@ -1162,7 +1162,7 @@ class revlog(object):
         revs.insert(0, p)
 
         # build deltas
-        for d in xrange(0, len(revs) - 1):
+        for d in xrange(len(revs) - 1):
             a, b = revs[d], revs[d + 1]
             nb = self.node(b)