--- a/mercurial/manifest.py Mon Nov 22 17:57:11 2010 +0100
+++ b/mercurial/manifest.py Mon Nov 22 18:15:58 2010 +0100
@@ -171,19 +171,19 @@
raise AssertionError(
_("failed to remove %s from manifest") % f)
l = ""
- if dstart != None and dstart <= start and dend >= start:
+ if dstart is not None and dstart <= start and dend >= start:
if dend < end:
dend = end
if l:
dline.append(l)
else:
- if dstart != None:
+ if dstart is not None:
delta.append([dstart, dend, "".join(dline)])
dstart = start
dend = end
dline = [l]
- if dstart != None:
+ if dstart is not None:
delta.append([dstart, dend, "".join(dline)])
# apply the delta to the addlist, and get a delta for addrevision
cachedelta = (self.rev(p1), addlistdelta(addlist, delta))