Raise statement normalization in Lib/.
diff --git a/Lib/platform.py b/Lib/platform.py
index 25daadd..7b4258f 100755
--- a/Lib/platform.py
+++ b/Lib/platform.py
@@ -378,7 +378,7 @@
     def __init__(self,cmd,mode='r',bufsize=None):
 
         if mode != 'r':
-            raise ValueError,'popen()-emulation only supports read mode'
+            raise ValueError('popen()-emulation only supports read mode')
         import tempfile
         self.tmpfile = tmpfile = tempfile.mktemp()
         os.system(cmd + ' > %s' % tmpfile)
@@ -490,7 +490,7 @@
             pipe = popen(cmd)
             info = pipe.read()
             if pipe.close():
-                raise os.error,'command failed'
+                raise os.error('command failed')
             # XXX How can I supress shell errors from being written
             #     to stderr ?
         except os.error as why: