accept bytes for the AST 'string' type

This is a temporary kludge and all is well in 3.3.

3 files changed, 5 insertions, 2 deletions

diff --git a/Misc/NEWS b/Misc/NEWS
index a562d29af3..4df888f4c7 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -10,6 +10,9 @@ What's New in Python 3.2.3?
 Core and Builtins
 -----------------
 
+- Accept bytes for the AST string type. This is temporary until a proper fix in
+  3.3.
+
 - Issue #9200: The str.is* methods now work with strings that contain non-BMP
   characters even in narrow Unicode builds.
 
diff --git a/Parser/asdl_c.py b/Parser/asdl_c.py
index 8a7f8aec7f..249e18ddf4 100755
--- a/Parser/asdl_c.py
+++ b/Parser/asdl_c.py
@@ -805,7 +805,7 @@ static int obj2ast_identifier(PyObject* obj, PyObject** out, PyArena* arena)
 
 static int obj2ast_string(PyObject* obj, PyObject** out, PyArena* arena)
 {
-    if (!PyUnicode_CheckExact(obj)) {
+    if (!PyUnicode_CheckExact(obj) && !PyBytes_CheckExact(obj)) {
         PyErr_SetString(PyExc_TypeError, "AST string must be of type str");
         return 1;
     }
diff --git a/Python/Python-ast.c b/Python/Python-ast.c
index 8ba06ff39a..89c07cd602 100644
--- a/Python/Python-ast.c
+++ b/Python/Python-ast.c
@@ -611,7 +611,7 @@ static int obj2ast_identifier(PyObject* obj, PyObject** out, PyArena* arena)
 
 static int obj2ast_string(PyObject* obj, PyObject** out, PyArena* arena)
 {
-    if (!PyUnicode_CheckExact(obj)) {
+    if (!PyUnicode_CheckExact(obj) && !PyBytes_CheckExact(obj)) {
         PyErr_SetString(PyExc_TypeError, "AST string must be of type str");
         return 1;
     }