From: Benjamin Peterson <benjamin@python.org>
Date: Thu, 24 Jun 2010 00:12:40 +0000 (+0000)
Subject: prevent assignment to set literals
X-Git-Tag: v2.7~71
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=947ce58a9018d23cb1e5e8de550f2ba0e542248e;p=thirdparty%2FPython%2Fcpython.git

prevent assignment to set literals
---

diff --git a/Lib/test/test_syntax.py b/Lib/test/test_syntax.py
index 899db61d17a8..4992a32a8e00 100644
--- a/Lib/test/test_syntax.py
+++ b/Lib/test/test_syntax.py
@@ -468,6 +468,12 @@ Traceback (most recent call last):
   File "<doctest test.test_syntax[50]>", line 1
 SyntaxError: can't delete ()
 
+>>> {1, 2, 3} = 42
+Traceback (most recent call last):
+   ...
+   File "<doctest test.test_syntax[50]>", line 1
+SyntaxError: can't assign to literal
+
 """
 
 import re
diff --git a/Misc/NEWS b/Misc/NEWS
index cb602391382a..70ce171577e7 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,8 @@ What's New in Python 2.7?
 Core and Builtins
 -----------------
 
+- Prevent assignment to set literals.
+
 Library
 -------
 
diff --git a/Python/ast.c b/Python/ast.c
index 41c0d28e1b5c..f8c83d934c6e 100644
--- a/Python/ast.c
+++ b/Python/ast.c
@@ -440,6 +440,7 @@ set_context(struct compiling *c, expr_ty e, expr_context_ty ctx, const node *n)
             expr_name = "dict comprehension";
             break;
         case Dict_kind:
+        case Set_kind:
         case Num_kind:
         case Str_kind:
             expr_name = "literal";