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.
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 @@
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 @@
}
/* Encode via the codec registry */
- v = PyCodec_Encode(unicode, encoding, errors);
+ v = _PyCodec_EncodeText(unicode, encoding, errors);
if (v == NULL)
return NULL;