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From c636f0cc386c9ded9f31947bbd74affccc93c21a Mon Sep 17 00:00:00 2001
From: yoch <yoch.melka@gmail.com>
Date: Mon, 14 May 2018 21:55:00 +0300
Subject: [PATCH] Adding buffer protocol support for Python 3
---
bitarray/_bitarray.c | 12 ++++++++++--
bitarray/test_bitarray.py | 14 +++++++-------
2 files changed, 17 insertions(+), 9 deletions(-)
diff --git a/bitarray/_bitarray.c b/bitarray/_bitarray.c
index d2c19cb..be6b379 100644
--- a/bitarray/_bitarray.c
+++ b/bitarray/_bitarray.c
@@ -48,7 +48,7 @@ int PyIndex_Check(PyObject *o)
#define Py_SIZE(ob) (((PyVarObject *) (ob))->ob_size)
#endif
-#if PY_MAJOR_VERSION == 2 && PY_MINOR_VERSION == 7
+#if PY_MAJOR_VERSION == 3 || (PY_MAJOR_VERSION == 2 && PY_MINOR_VERSION == 7)
/* (new) buffer protocol */
#define WITH_BUFFER
#endif
@@ -2787,6 +2787,8 @@ static PyTypeObject BitarrayIter_Type = {
/********************* Bitarray Buffer Interface ************************/
#ifdef WITH_BUFFER
+
+#if PY_MAJOR_VERSION == 2
static Py_ssize_t
bitarray_buffer_getreadbuf(bitarrayobject *self,
Py_ssize_t index, const void **ptr)
@@ -2831,6 +2833,8 @@ bitarray_buffer_getcharbuf(bitarrayobject *self,
return Py_SIZE(self);
}
+#endif
+
static int
bitarray_getbuffer(bitarrayobject *self, Py_buffer *view, int flags)
{
@@ -2857,14 +2861,18 @@ bitarray_releasebuffer(bitarrayobject *self, Py_buffer *view)
}
static PyBufferProcs bitarray_as_buffer = {
+#if PY_MAJOR_VERSION == 2 // old buffer protocol
(readbufferproc) bitarray_buffer_getreadbuf,
(writebufferproc) bitarray_buffer_getwritebuf,
(segcountproc) bitarray_buffer_getsegcount,
(charbufferproc) bitarray_buffer_getcharbuf,
+#endif
(getbufferproc) bitarray_getbuffer,
(releasebufferproc) bitarray_releasebuffer,
};
+
#endif /* WITH_BUFFER */
+
/************************** Bitarray Type *******************************/
static PyTypeObject Bitarraytype = {
@@ -2898,7 +2906,7 @@ static PyTypeObject Bitarraytype = {
0, /* tp_as_buffer */
#endif
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_WEAKREFS
-#ifdef WITH_BUFFER
+#if defined(WITH_BUFFER) && PY_MAJOR_VERSION == 2
| Py_TPFLAGS_HAVE_NEWBUFFER
#endif
, /* tp_flags */
diff --git a/bitarray/test_bitarray.py b/bitarray/test_bitarray.py
index 44de2f0..b72b554 100644
--- a/bitarray/test_bitarray.py
+++ b/bitarray/test_bitarray.py
@@ -2113,10 +2113,10 @@ def test_read1(self):
a = bitarray('01000001' '01000010' '01000011', endian='big')
v = memoryview(a)
self.assertEqual(len(v), 3)
- self.assertEqual(v[0], 'A')
- self.assertEqual(v[:].tobytes(), 'ABC')
+ #self.assertEqual(v[0], 'A')
+ self.assertEqual(v[:].tobytes(), b'ABC')
a[13] = 1
- self.assertEqual(v[:].tobytes(), 'AFC')
+ self.assertEqual(v[:].tobytes(), b'AFC')
def test_read2(self):
a = bitarray([randint(0, 1) for d in range(8000)])
@@ -2131,14 +2131,14 @@ def test_write(self):
a.setall(0)
v = memoryview(a)
self.assertFalse(v.readonly)
- v[50000] = '\xff'
+ v[50000] = 255 if is_py3k else '\xff'
self.assertEqual(a[399999:400009], bitarray('0111111110'))
a[400003] = 0
self.assertEqual(a[399999:400009], bitarray('0111011110'))
- v[30001:30004] = 'ABC'
- self.assertEqual(a[240000:240040].tobytes(), '\x00ABC\x00')
+ v[30001:30004] = b'ABC'
+ self.assertEqual(a[240000:240040].tobytes(), b'\x00ABC\x00')
-if sys.version_info[:2] == (2, 7):
+if sys.version_info[:2] >= (2, 7):
tests.append(BufferInterfaceTests)
# ---------------------------------------------------------------------------
|