future: Update raise syntax.

Author: pfalcon

compiler/future.py

@@ -34,8 +34,8 @@ def check_stmt(self, stmt):
                 if name in self.features:
                     self.found[name] = 1
                 else:
-                    raise SyntaxError, \
-                          "future feature %s is not defined" % name
+                    raise SyntaxError(
+                          "future feature %s is not defined" % name)
             stmt.valid_future = 1
             return 1
         return 0
@@ -52,7 +52,7 @@ def visitFrom(self, node):
             return
         if node.modname != "__future__":
             return
-        raise SyntaxError, "invalid future statement " + repr(node)
+        raise SyntaxError("invalid future statement " + repr(node))
 
 def find_futures(node):
     p1 = FutureParser()