From bc8734174a0cd6513e55627464038aed22b3c32c Mon Sep 17 00:00:00 2001
From: Christian Heimes <christian@cheimes.de>
Date: Sat, 8 Dec 2007 22:11:32 +0000
Subject: Fixed #1573: Improper use of the keyword-only syntax makes the parser
 crash >>> def f(*, **kw): ...   pass ... python: Python/ast.c:652:
 handle_keywordonly_args: Assertion 'kwonlyargs != ((void *)0)' failed.

---
 Python/ast.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'Python/ast.c')

diff --git a/Python/ast.c b/Python/ast.c
index 6ad43dd798..0127281a4d 100644
--- a/Python/ast.c
+++ b/Python/ast.c
@@ -649,8 +649,8 @@ handle_keywordonly_args(struct compiling *c, const node *n, int start,
     arg_ty arg;
     int i = start;
     int j = 0; /* index for kwdefaults and kwonlyargs */
-    assert(kwonlyargs != NULL);
-    assert(kwdefaults != NULL);
+    assert((kwonlyargs != NULL && kwdefaults != NULL) ||
+           TYPE(CHILD(n, i)) == DOUBLESTAR);
     while (i < NCH(n)) {
         ch = CHILD(n, i);
         switch (TYPE(ch)) {
-- 
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