diff --git a/Tools/scripts/classfix.py b/Tools/scripts/classfix.py
index f65e630..0cd1e49 100755
--- a/Tools/scripts/classfix.py
+++ b/Tools/scripts/classfix.py
@@ -129,7 +129,7 @@
     # First copy the file's mode to the temp file
     try:
         statbuf = os.stat(filename)
-        os.chmod(tempname, statbuf[ST_MODE] & 07777)
+        os.chmod(tempname, statbuf[ST_MODE] & 0o7777)
     except os.error as msg:
         err('%s: warning: chmod failed (%r)\n' % (tempname, msg))
     # Then make a backup of the original file as filename~
diff --git a/Tools/scripts/fixcid.py b/Tools/scripts/fixcid.py
index 29e0e10..d434345 100755
--- a/Tools/scripts/fixcid.py
+++ b/Tools/scripts/fixcid.py
@@ -174,7 +174,7 @@
     # First copy the file's mode to the temp file
     try:
         statbuf = os.stat(filename)
-        os.chmod(tempname, statbuf[ST_MODE] & 07777)
+        os.chmod(tempname, statbuf[ST_MODE] & 0o7777)
     except os.error as msg:
         err(tempname + ': warning: chmod failed (' + str(msg) + ')\n')
     # Then make a backup of the original file as filename~
diff --git a/Tools/scripts/ftpmirror.py b/Tools/scripts/ftpmirror.py
index 39ef18e..7318b37 100755
--- a/Tools/scripts/ftpmirror.py
+++ b/Tools/scripts/ftpmirror.py
@@ -375,7 +375,7 @@
         return
     dirname = os.path.dirname(pathname)
     if dirname: makedir(dirname)
-    os.mkdir(pathname, 0777)
+    os.mkdir(pathname, 0o777)
 
 # Write a dictionary to a file in a way that can be read back using
 # rval() but is still somewhat readable (i.e. not a single long line).
diff --git a/Tools/scripts/linktree.py b/Tools/scripts/linktree.py
index 7f17046..2b41e7d 100755
--- a/Tools/scripts/linktree.py
+++ b/Tools/scripts/linktree.py
@@ -31,7 +31,7 @@
         print oldtree + ': not a directory'
         return 1
     try:
-        os.mkdir(newtree, 0777)
+        os.mkdir(newtree, 0o777)
     except os.error as msg:
         print newtree + ': cannot mkdir:', msg
         return 1
@@ -63,7 +63,7 @@
             if os.path.isdir(oldname) and \
                not os.path.islink(oldname):
                 try:
-                    os.mkdir(newname, 0777)
+                    os.mkdir(newname, 0o777)
                     ok = 1
                 except:
                     print newname + \
diff --git a/Tools/scripts/methfix.py b/Tools/scripts/methfix.py
index 11875a1..f5fe7cd 100755
--- a/Tools/scripts/methfix.py
+++ b/Tools/scripts/methfix.py
@@ -140,7 +140,7 @@
     # First copy the file's mode to the temp file
     try:
         statbuf = os.stat(filename)
-        os.chmod(tempname, statbuf[ST_MODE] & 07777)
+        os.chmod(tempname, statbuf[ST_MODE] & 0o7777)
     except os.error as msg:
         err('%s: warning: chmod failed (%r)\n' % (tempname, msg))
     # Then make a backup of the original file as filename~
diff --git a/Tools/scripts/pathfix.py b/Tools/scripts/pathfix.py
index c59c0f2..601a172 100755
--- a/Tools/scripts/pathfix.py
+++ b/Tools/scripts/pathfix.py
@@ -121,7 +121,7 @@
     # First copy the file's mode to the temp file
     try:
         statbuf = os.stat(filename)
-        os.chmod(tempname, statbuf[ST_MODE] & 07777)
+        os.chmod(tempname, statbuf[ST_MODE] & 0o7777)
     except os.error as msg:
         err('%s: warning: chmod failed (%r)\n' % (tempname, msg))
     # Then make a backup of the original file as filename~
diff --git a/Tools/scripts/reindent.py b/Tools/scripts/reindent.py
old mode 100644
new mode 100755
diff --git a/Tools/scripts/which.py b/Tools/scripts/which.py
index 49b69ac..368eea2 100755
--- a/Tools/scripts/which.py
+++ b/Tools/scripts/which.py
@@ -35,7 +35,7 @@
                 msg(filename + ': not a disk file')
             else:
                 mode = S_IMODE(st[ST_MODE])
-                if mode & 0111:
+                if mode & 0o111:
                     if not ident:
                         print filename
                         ident = st[:3]