[Python-checkins] r65041 - in python/trunk: Lib/test/test_bytes.py Misc/NEWS Objects/bytearrayobject.c
georg.brandl
python-checkins at python.org
Thu Jul 17 00:57:41 CEST 2008
Author: georg.brandl
Date: Thu Jul 17 00:57:41 2008
New Revision: 65041
Log:
#3156: fix consistency in what type bytearray methods accept as items.
Also rename confusing "item" parameters to "index".
Modified:
python/trunk/Lib/test/test_bytes.py
python/trunk/Misc/NEWS
python/trunk/Objects/bytearrayobject.c
Modified: python/trunk/Lib/test/test_bytes.py
==============================================================================
--- python/trunk/Lib/test/test_bytes.py (original)
+++ python/trunk/Lib/test/test_bytes.py Thu Jul 17 00:57:41 2008
@@ -17,6 +17,12 @@
import test.string_tests
import test.buffer_tests
+class Indexable:
+ def __init__(self, value=0):
+ self.value = value
+ def __index__(self):
+ return self.value
+
class BaseBytesTest(unittest.TestCase):
@@ -53,15 +59,11 @@
self.assertEqual(list(b), ints)
def test_from_index(self):
- class C:
- def __init__(self, i=0):
- self.i = i
- def __index__(self):
- return self.i
- b = self.type2test([C(), C(1), C(254), C(255)])
+ b = self.type2test([Indexable(), Indexable(1), Indexable(254),
+ Indexable(255)])
self.assertEqual(list(b), [0, 1, 254, 255])
- self.assertRaises(ValueError, bytearray, [C(-1)])
- self.assertRaises(ValueError, bytearray, [C(256)])
+ self.assertRaises(ValueError, bytearray, [Indexable(-1)])
+ self.assertRaises(ValueError, bytearray, [Indexable(256)])
def test_from_ssize(self):
self.assertEqual(bytearray(0), b'')
@@ -506,12 +508,7 @@
self.assertEqual(b, bytearray([1, 100, 3]))
b[-1] = 200
self.assertEqual(b, bytearray([1, 100, 200]))
- class C:
- def __init__(self, i=0):
- self.i = i
- def __index__(self):
- return self.i
- b[0] = C(10)
+ b[0] = Indexable(10)
self.assertEqual(b, bytearray([10, 100, 200]))
try:
b[3] = 0
@@ -529,7 +526,7 @@
except ValueError:
pass
try:
- b[0] = C(-1)
+ b[0] = Indexable(-1)
self.fail("Didn't raise ValueError")
except ValueError:
pass
@@ -665,6 +662,9 @@
self.assertRaises(ValueError, a.extend, [0, 1, 2, 256])
self.assertRaises(ValueError, a.extend, [0, 1, 2, -1])
self.assertEqual(len(a), 0)
+ a = bytearray(b'')
+ a.extend([Indexable(ord('a'))])
+ self.assertEqual(a, b'a')
def test_remove(self):
b = bytearray(b'hello')
@@ -680,6 +680,8 @@
b.remove(ord('h'))
self.assertEqual(b, b'e')
self.assertRaises(TypeError, lambda: b.remove(u'e'))
+ b.remove(Indexable(ord('e')))
+ self.assertEqual(b, b'')
def test_pop(self):
b = bytearray(b'world')
@@ -701,6 +703,9 @@
b.append(ord('A'))
self.assertEqual(len(b), 1)
self.assertRaises(TypeError, lambda: b.append(u'o'))
+ b = bytearray()
+ b.append(Indexable(ord('A')))
+ self.assertEqual(b, b'A')
def test_insert(self):
b = bytearray(b'msssspp')
@@ -709,7 +714,11 @@
b.insert(-2, ord('i'))
b.insert(1000, ord('i'))
self.assertEqual(b, b'mississippi')
- self.assertRaises(TypeError, lambda: b.insert(0, b'1'))
+ # allowed in 2.6
+ #self.assertRaises(TypeError, lambda: b.insert(0, b'1'))
+ b = bytearray()
+ b.insert(0, Indexable(ord('A')))
+ self.assertEqual(b, b'A')
def test_partition_bytearray_doesnt_share_nullstring(self):
a, b, c = bytearray(b"x").partition(b"y")
Modified: python/trunk/Misc/NEWS
==============================================================================
--- python/trunk/Misc/NEWS (original)
+++ python/trunk/Misc/NEWS Thu Jul 17 00:57:41 2008
@@ -10,6 +10,10 @@
Core and Builtins
-----------------
+- Issue #3156: Fix inconsistent behavior of the bytearray type: all
+ its methods now allow for items objects that can be converted to
+ an integer using operator.index().
+
- Issue #3360: Fix incorrect parsing of '020000000000.0', which
produced a ValueError instead of giving the correct float.
Modified: python/trunk/Objects/bytearrayobject.c
==============================================================================
--- python/trunk/Objects/bytearrayobject.c (original)
+++ python/trunk/Objects/bytearrayobject.c Thu Jul 17 00:57:41 2008
@@ -34,22 +34,32 @@
{
long face_value;
- if (PyInt_Check(arg)) {
- face_value = PyInt_AsLong(arg);
- if (face_value < 0 || face_value >= 256) {
- PyErr_SetString(PyExc_ValueError, "byte must be in range(0, 256)");
- return 0;
- }
- }
- else if (PyBytes_CheckExact(arg)) {
+ if (PyBytes_CheckExact(arg)) {
if (Py_SIZE(arg) != 1) {
PyErr_SetString(PyExc_ValueError, "string must be of size 1");
return 0;
}
- face_value = Py_CHARMASK(((PyBytesObject*)arg)->ob_sval[0]);
+ *value = Py_CHARMASK(((PyBytesObject*)arg)->ob_sval[0]);
+ return 1;
+ }
+ else if (PyInt_Check(arg) || PyLong_Check(arg)) {
+ face_value = PyLong_AsLong(arg);
}
else {
- PyErr_Format(PyExc_TypeError, "an integer or string of size 1 is required");
+ PyObject *index = PyNumber_Index(arg);
+ if (index == NULL) {
+ PyErr_Format(PyExc_TypeError,
+ "an integer or string of size 1 is required");
+ return 0;
+ }
+ face_value = PyLong_AsLong(index);
+ Py_DECREF(index);
+ }
+ if (face_value == -1 && PyErr_Occurred())
+ return 0;
+
+ if (face_value < 0 || face_value >= 256) {
+ PyErr_SetString(PyExc_ValueError, "byte must be in range(0, 256)");
return 0;
}
@@ -410,10 +420,10 @@
}
static PyObject *
-bytes_subscript(PyByteArrayObject *self, PyObject *item)
+bytes_subscript(PyByteArrayObject *self, PyObject *index)
{
- if (PyIndex_Check(item)) {
- Py_ssize_t i = PyNumber_AsSsize_t(item, PyExc_IndexError);
+ if (PyIndex_Check(index)) {
+ Py_ssize_t i = PyNumber_AsSsize_t(index, PyExc_IndexError);
if (i == -1 && PyErr_Occurred())
return NULL;
@@ -427,9 +437,9 @@
}
return PyInt_FromLong((unsigned char)(self->ob_bytes[i]));
}
- else if (PySlice_Check(item)) {
+ else if (PySlice_Check(index)) {
Py_ssize_t start, stop, step, slicelength, cur, i;
- if (PySlice_GetIndicesEx((PySliceObject *)item,
+ if (PySlice_GetIndicesEx((PySliceObject *)index,
PyByteArray_GET_SIZE(self),
&start, &stop, &step, &slicelength) < 0) {
return NULL;
@@ -574,13 +584,13 @@
}
static int
-bytes_ass_subscript(PyByteArrayObject *self, PyObject *item, PyObject *values)
+bytes_ass_subscript(PyByteArrayObject *self, PyObject *index, PyObject *values)
{
Py_ssize_t start, stop, step, slicelen, needed;
char *bytes;
- if (PyIndex_Check(item)) {
- Py_ssize_t i = PyNumber_AsSsize_t(item, PyExc_IndexError);
+ if (PyIndex_Check(index)) {
+ Py_ssize_t i = PyNumber_AsSsize_t(index, PyExc_IndexError);
if (i == -1 && PyErr_Occurred())
return -1;
@@ -601,25 +611,15 @@
slicelen = 1;
}
else {
- Py_ssize_t ival = PyNumber_AsSsize_t(values, PyExc_ValueError);
- if (ival == -1 && PyErr_Occurred()) {
- int int_value;
- /* Also accept str of size 1 in 2.x */
- PyErr_Clear();
- if (!_getbytevalue(values, &int_value))
- return -1;
- ival = (int) int_value;
- } else if (ival < 0 || ival >= 256) {
- PyErr_SetString(PyExc_ValueError,
- "byte must be in range(0, 256)");
+ int ival;
+ if (!_getbytevalue(values, &ival))
return -1;
- }
self->ob_bytes[i] = (char)ival;
return 0;
}
}
- else if (PySlice_Check(item)) {
- if (PySlice_GetIndicesEx((PySliceObject *)item,
+ else if (PySlice_Check(index)) {
+ if (PySlice_GetIndicesEx((PySliceObject *)index,
PyByteArray_GET_SIZE(self),
&start, &stop, &step, &slicelen) < 0) {
return -1;
@@ -640,7 +640,7 @@
values = PyByteArray_FromObject(values);
if (values == NULL)
return -1;
- err = bytes_ass_subscript(self, item, values);
+ err = bytes_ass_subscript(self, index, values);
Py_DECREF(values);
return err;
}
@@ -2594,10 +2594,11 @@
static PyObject *
bytes_insert(PyByteArrayObject *self, PyObject *args)
{
- int value;
+ PyObject *value;
+ int ival;
Py_ssize_t where, n = Py_SIZE(self);
- if (!PyArg_ParseTuple(args, "ni:insert", &where, &value))
+ if (!PyArg_ParseTuple(args, "nO:insert", &where, &value))
return NULL;
if (n == PY_SSIZE_T_MAX) {
@@ -2605,11 +2606,8 @@
"cannot add more objects to bytes");
return NULL;
}
- if (value < 0 || value >= 256) {
- PyErr_SetString(PyExc_ValueError,
- "byte must be in range(0, 256)");
+ if (!_getbytevalue(value, &ival))
return NULL;
- }
if (PyByteArray_Resize((PyObject *)self, n + 1) < 0)
return NULL;
@@ -2621,7 +2619,7 @@
if (where > n)
where = n;
memmove(self->ob_bytes + where + 1, self->ob_bytes + where, n - where);
- self->ob_bytes[where] = value;
+ self->ob_bytes[where] = ival;
Py_RETURN_NONE;
}
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