Patch #1490190: posixmodule now includes os.chflags() and os.lchflags()
functions on platforms where the underlying system calls are available.
diff --git a/Lib/stat.py b/Lib/stat.py
index 70750d8..5f41687 100644
--- a/Lib/stat.py
+++ b/Lib/stat.py
@@ -84,3 +84,16 @@
 S_IROTH = 00004
 S_IWOTH = 00002
 S_IXOTH = 00001
+
+# Names for file flags
+
+UF_NODUMP    = 0x00000001
+UF_IMMUTABLE = 0x00000002
+UF_APPEND    = 0x00000004
+UF_OPAQUE    = 0x00000008
+UF_NOUNLINK  = 0x00000010
+SF_ARCHIVED  = 0x00010000
+SF_IMMUTABLE = 0x00020000
+SF_APPEND    = 0x00040000
+SF_NOUNLINK  = 0x00100000
+SF_SNAPSHOT  = 0x00200000