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bpo-32571: Avoid raising unneeded AttributeError and silencing it in C code (GH-5222)

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Add two new private APIs: _PyObject_LookupAttr() and _PyObject_LookupAttrId()
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Serhiy Storchaka 2018-01-25 10:49:40 +02:00 • committed by INADA Naoki
parent 2b822a0bb1
commit f320be77ff
22 changed files with 1455 additions and 1442 deletions
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14
Python/codecs.c
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@ -540,15 +540,11 @@ PyObject * _PyCodec_LookupTextEncoding(const char *encoding,
* attribute.
*/
if (!PyTuple_CheckExact(codec)) {
attr = _PyObject_GetAttrId(codec, &PyId__is_text_encoding);
if (attr == NULL) {
if (PyErr_ExceptionMatches(PyExc_AttributeError)) {
PyErr_Clear();
} else {
Py_DECREF(codec);
return NULL;
}
} else {
if (_PyObject_LookupAttrId(codec, &PyId__is_text_encoding, &attr) < 0) {
Py_DECREF(codec);
return NULL;
}
if (attr != NULL) {
is_text_codec = PyObject_IsTrue(attr);
Py_DECREF(attr);
if (is_text_codec <= 0) {