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/Include/codecs.h b/Include/codecs.h
index 0d9e9b4..5ca505f 100644
--- a/Include/codecs.h
+++ b/Include/codecs.h
@@ -94,6 +94,33 @@
const char *errors
);
+#ifndef PY_LIMITED_API
+/* Text codec specific encoding and decoding API.
+
+ Checks the encoding against a list of codecs which do not
+ implement a str<->bytes encoding before attempting the
+ operation.
+
+ Please note that these APIs are internal and should not
+ be used in Python C extensions.
+
+ */
+
+PyAPI_FUNC(PyObject *) _PyCodec_EncodeText(
+ PyObject *object,
+ const char *encoding,
+ const char *errors
+ );
+
+PyAPI_FUNC(PyObject *) _PyCodec_DecodeText(
+ PyObject *object,
+ const char *encoding,
+ const char *errors
+ );
+#endif
+
+
+
/* --- Codec Lookup APIs --------------------------------------------------
All APIs return a codec object with incremented refcount and are