Merged revisions 75224 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k
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r75224 | benjamin.peterson | 2009-10-03 15:27:13 -0500 (Sat, 03 Oct 2009) | 9 lines
Merged revisions 75223 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
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r75223 | benjamin.peterson | 2009-10-03 15:23:24 -0500 (Sat, 03 Oct 2009) | 1 line
#7050 fix a SystemError when using tuple unpacking and augmented assignment
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diff --git a/Python/ast.c b/Python/ast.c
index 83572ee..b0684c5 100644
--- a/Python/ast.c
+++ b/Python/ast.c
@@ -2105,6 +2105,19 @@
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)