Make it illegal to assign to __debug__ as per Guido's request.
diff --git a/Python/compile.c b/Python/compile.c
index 3e638ca..df514c7 100644
--- a/Python/compile.c
+++ b/Python/compile.c
@@ -66,6 +66,9 @@
#define LATE_FUTURE \
"from __future__ imports must occur at the beginning of the file"
+#define ASSIGN_DEBUG \
+"can not assign to __debug__"
+
#define MANGLE_LEN 256
#define OFF(x) offsetof(PyCodeObject, x)
@@ -5181,8 +5184,16 @@
if (TYPE(tmp) == LPAR || TYPE(tmp) == LSQB) {
n = CHILD(n, 1);
goto loop;
- } else if (TYPE(tmp) == NAME)
+ } else if (TYPE(tmp) == NAME) {
+ if (strcmp(STR(tmp), "__debug__") == 0) {
+ PyErr_SetString(PyExc_SyntaxError,
+ ASSIGN_DEBUG);
+ PyErr_SyntaxLocation(st->st_filename,
+ n->n_lineno);
+ st->st_errors++;
+ }
symtable_add_def(st, STR(tmp), DEF_LOCAL | flag);
+ }
return;
case dotted_as_name:
if (NCH(n) == 3)