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

Tools/unicode/comparecodecs.py

@@ -18,11 +18,11 @@ def compare_codecs(encoding1, encoding2):
         u = unichr(i)
         try:
             c1 = u.encode(encoding1)
-        except UnicodeError, reason:
+        except UnicodeError as reason:
             c1 = '<undefined>'
         try:
             c2 = u.encode(encoding2)
-        except UnicodeError, reason:
+        except UnicodeError as reason:
             c2 = '<undefined>'
         if c1 != c2:
             print ' * encoding mismatch for 0x%04X: %-14r != %r' % \

Tools/unicode/gencodec.py

@@ -130,7 +130,7 @@ def hexrepr(t, precision=4):
     try:
         return '(' + ', '.join(['0x%0*X' % (precision, item)
                                 for item in t]) + ')'
-    except TypeError, why:
+    except TypeError as why:
         print '* failed to convert %r: %s' % (t, why)
         raise
 
@@ -393,7 +393,7 @@ def convertdir(dir, dirprefix='', nameprefix='', comments=1):
             else:
                 pymap(mappathname, map, dirprefix + codefile,name,comments)
                 marshalmap(mappathname, map, dirprefix + marshalfile)
-        except ValueError, why:
+        except ValueError as why:
             print '* conversion failed: %s' % why
             raise
 
@@ -414,7 +414,7 @@ def rewritepythondir(dir, dirprefix='', comments=1):
                 print '* map is empty; skipping'
             else:
                 pymap(mapname, map, dirprefix + codefile,name,comments)
-        except ValueError, why:
+        except ValueError as why:
             print '* conversion failed: %s' % why
 
 if __name__ == '__main__':

Tools/unicode/listcodecs.py

@@ -22,7 +22,7 @@ def listcodecs(dir):
         except LookupError:
             # Codec not found
             continue
-        except Exception, reason:
+        except Exception as reason:
             # Probably an error from importing the codec; still it's
             # a valid code name
             if _debug: