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Issue #27704: Optimized creating bytes and bytearray from byte-like objects

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and iterables.  Speed up to 3 times for short objects.  Original patch by
Naoki Inada.
This commit is contained in:
Serhiy Storchaka 2016-08-15 09:46:07 +03:00
parent d00342347e
commit eb24988962
3 changed files with 20 additions and 20 deletions
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18
Objects/bytesobject.c
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@ -2563,17 +2563,15 @@ bytes_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
return NULL;
}
/* Is it an integer? */
size = PyNumber_AsSsize_t(x, PyExc_OverflowError);
if (size == -1 && PyErr_Occurred()) {
if (PyErr_ExceptionMatches(PyExc_OverflowError))
if (PyIndex_Check(x)) {
size = PyNumber_AsSsize_t(x, PyExc_OverflowError);
if (size == -1 && PyErr_Occurred()) {
return NULL;
PyErr_Clear();
}
else if (size < 0) {
PyErr_SetString(PyExc_ValueError, "negative count");
return NULL;
}
else {
}
if (size < 0) {
PyErr_SetString(PyExc_ValueError, "negative count");
return NULL;
}
new = _PyBytes_FromSize(size, 1);
if (new == NULL)
return NULL;