Make ELLIPSIS a separate token. This makes it a syntax error to write ". .    ." for Ellipsis.
diff --git a/Lib/token.py b/Lib/token.py
index 147536c..eb48e76 100755
--- a/Lib/token.py
+++ b/Lib/token.py
@@ -61,9 +61,10 @@
 DOUBLESLASHEQUAL = 49
 AT = 50
 RARROW = 51
-OP = 52
-ERRORTOKEN = 53
-N_TOKENS = 54
+ELLIPSIS = 52
+OP = 53
+ERRORTOKEN = 54
+N_TOKENS = 55
 NT_OFFSET = 256
 #--end constants--