SF patch 1631942 by Collin Winter:
(a) "except E, V" -> "except E as V"
(b) V is now limited to a simple name (local variable)
(c) V is now deleted at the end of the except block
diff --git a/Tools/scripts/texi2html.py b/Tools/scripts/texi2html.py
index 3ecaee6..d849d7c 100755
--- a/Tools/scripts/texi2html.py
+++ b/Tools/scripts/texi2html.py
@@ -554,7 +554,7 @@
         file = os.path.join(self.includedir, file)
         try:
             fp = open(file, 'r')
-        except IOError, msg:
+        except IOError as msg:
             print '*** Can\'t open include file', repr(file)
             return
         print '!'*self.debugging, '--> file', repr(file)
@@ -1797,7 +1797,7 @@
             print>>fp, ''
             self.dumpfiles(fp)
             fp.close()
-        except IOError, msg:
+        except IOError as msg:
             print projectfile, ':', msg
             sys.exit(1)
 
@@ -1822,7 +1822,7 @@
             print>>fp, '</BODY>'
             print>>fp, '</HTML>'
             fp.close()
-        except IOError, msg:
+        except IOError as msg:
             print contentfile, ':', msg
             sys.exit(1)
 
@@ -1844,7 +1844,7 @@
             print>>fp, '</BODY>'
             print>>fp, '</HTML>'
             fp.close()
-        except IOError, msg:
+        except IOError as msg:
             print indexfile  , ':', msg
             sys.exit(1)
 
@@ -2063,7 +2063,7 @@
 
     try:
         fp = open(file, 'r')
-    except IOError, msg:
+    except IOError as msg:
         print file, ':', msg
         sys.exit(1)