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

Browse source 
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.
This commit is contained in:
Nick Coghlan 2013-11-22 22:39:36 +10:00
parent 322f5ba0d8
commit c72e4e6dcc
13 changed files with 291 additions and 93 deletions
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4
Objects/unicodeobject.c
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@ -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;