From 7adbb5a35da601fc68255eeaf341ad734e86a9bf Mon Sep 17 00:00:00 2001 From: Benjamin Peterson Date: Sat, 3 Oct 2009 20:23:24 +0000 Subject: #7050 fix a SystemError when using tuple unpacking and augmented assignment --- Python/ast.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'Python/ast.c') diff --git a/Python/ast.c b/Python/ast.c index 2f975ac8e0..3422c2e1b0 100644 --- a/Python/ast.c +++ b/Python/ast.c @@ -2097,6 +2097,19 @@ ast_for_expr_stmt(struct compiling *c, const node *n) return NULL; if(!set_context(c, expr1, Store, ch)) return NULL; + /* set_context checks that most expressions are not the left side. + Augmented assignments can only have a name, a subscript, or an + attribute on the left, though, so we have to explicitly check for + those. */ + switch (expr1->kind) { + case Name_kind: + case Attribute_kind: + case Subscript_kind: + break; + default: + ast_error(ch, "illegal expression for augmented assignment"); + return NULL; + } ch = CHILD(n, 2); if (TYPE(ch) == testlist) -- cgit v1.2.1