Issue #19619: Blacklist non-text codecs in method API

str.encode, bytes.decode and bytearray.decode now use an
internal API to throw LookupError for known non-text encodings,
rather than attempting the encoding or decoding operation and
then throwing a TypeError for an unexpected output type.

The latter mechanism remains in place for third party non-text
encodings.

1 files changed, 2 insertions, 2 deletions

diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index 3644db3..7de5f1f 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -3044,7 +3044,7 @@ PyUnicode_Decode(const char *s,
     buffer = PyMemoryView_FromBuffer(&info);
     if (buffer == NULL)
         goto onError;
-    unicode = PyCodec_Decode(buffer, encoding, errors);
+    unicode = _PyCodec_DecodeText(buffer, encoding, errors);
     if (unicode == NULL)
         goto onError;
     if (!PyUnicode_Check(unicode)) {
@@ -3410,7 +3410,7 @@ PyUnicode_AsEncodedString(PyObject *unicode,
     }
 
     /* Encode via the codec registry */
-    v = PyCodec_Encode(unicode, encoding, errors);
+    v = _PyCodec_EncodeText(unicode, encoding, errors);
     if (v == NULL)
         return NULL;