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Commit3f1c06d

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Add Py_HashBuffer() function (#112)
1 parentfba4977 commit3f1c06d

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4 files changed

+69
-1
lines changed

4 files changed

+69
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lines changed

‎docs/api.rst

Lines changed: 32 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -10,7 +10,7 @@ Supported Python versions:
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* Python 3.6 - 3.14
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* PyPy 2.7 and PyPy 3.6 - 3.10
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Python 2.7 and Python 3.4 are no longer officially supported since GitHub
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Python 2.7 and Python 3.5 are no longer officially supported since GitHub
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Actions doesn't support them anymore: only best effort support is provided.
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C++03 and C++11 are supported on Python 3.6 and newer.
@@ -37,6 +37,10 @@ Python 3.14
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See `PyBytes_Join() documentation <https://docs.python.org/dev/c-api/bytes.html#c.PyBytes_Join>`__.
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.. c:function:: Py_hash_t Py_HashBuffer(const void *ptr, Py_ssize_t len)
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See `Py_HashBuffer() documentation <https://docs.python.org/dev/c-api/hash.html#c.Py_HashBuffer>`__.
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.. c:function:: int PyUnicode_Equal(PyObject *str1, PyObject *str2)
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See `PyUnicode_Equal() documentation <https://docs.python.org/dev/c-api/unicode.html#c.PyUnicode_Equal>`__.
@@ -83,7 +87,34 @@ Python 3.14
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Not supported:
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* ``PyConfig_Get()``
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* ``PyConfig_GetInt()``
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* ``PyConfig_Names()``
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* ``PyConfig_Set()``
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* ``PyInitConfig_AddModule()``
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* ``PyInitConfig_Create()``
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* ``PyInitConfig_Free()``
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* ``PyInitConfig_FreeStrList()``
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* ``PyInitConfig_GetError()``
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* ``PyInitConfig_GetExitCode()``
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* ``PyInitConfig_GetInt()``
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* ``PyInitConfig_GetStr()``
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* ``PyInitConfig_GetStrList()``
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* ``PyInitConfig_HasOption()``
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* ``PyInitConfig_SetInt()``
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* ``PyInitConfig_SetStr()``
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* ``PyInitConfig_SetStrList()``
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* ``PyLong_AsInt32()``
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* ``PyLong_AsInt64()``
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* ``PyLong_AsUInt32()``
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* ``PyLong_AsUInt64()``
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* ``PyLong_FromInt32()``
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* ``PyLong_FromInt64()``
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* ``PyLong_FromUInt32()``
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* ``PyLong_FromUInt64()``
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* ``PyType_GetBaseByToken()``
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* ``PyUnicodeWriter_DecodeUTF8Stateful()``
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* ``Py_InitializeFromInitConfig()``
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Python 3.13

‎docs/changelog.rst

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Original file line numberDiff line numberDiff line change
@@ -5,6 +5,7 @@ Changelog
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* ``PyBytes_Join()``
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* ``PyUnicode_Equal()``
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* ``Py_HashBuffer()``
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* 2024-07-18: Add functions:
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‎pythoncapi_compat.h

Lines changed: 21 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1555,6 +1555,27 @@ static inline PyObject* PyBytes_Join(PyObject *sep, PyObject *iterable)
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#endif
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#if PY_VERSION_HEX < 0x030E00A0
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staticinline Py_hash_tPy_HashBuffer(constvoid *ptr, Py_ssize_t len)
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{
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#if PY_VERSION_HEX >= 0x03000000 && !defined(PYPY_VERSION)
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extern Py_hash_t_Py_HashBytes(constvoid *src, Py_ssize_t len);
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return_Py_HashBytes(ptr, len);
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#else
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Py_hash_t hash;
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PyObject *bytes =PyBytes_FromStringAndSize((constchar*)ptr, len);
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if (bytes ==NULL) {
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return -1;
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}
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hash =PyObject_Hash(bytes);
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Py_DECREF(bytes);
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return hash;
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#endif
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}
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#endif
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#ifdef __cplusplus
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}
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#endif

‎tests/test_pythoncapi_compat_cext.c

Lines changed: 15 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1618,6 +1618,20 @@ test_hash(PyObject *Py_UNUSED(module), PyObject *Py_UNUSED(args))
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assert(imag!=0);
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#endif
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// Test Py_HashBuffer()
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{
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PyObject*abc=PyBytes_FromString("abc");
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if (abc==NULL) {
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returnNULL;
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}
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Py_hash_thash=Py_HashBuffer(PyBytes_AS_STRING(abc),
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PyBytes_GET_SIZE(abc));
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Py_hash_thash2=PyObject_Hash(abc);
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assert(hash==hash2);
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Py_DECREF(abc);
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}
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Py_RETURN_NONE;
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}
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@@ -1884,6 +1898,7 @@ test_unicodewriter_format(PyObject *Py_UNUSED(self), PyObject *Py_UNUSED(args))
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staticPyObject*
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test_bytes(PyObject*Py_UNUSED(module),PyObject*Py_UNUSED(args))
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{
1901+
// Test PyBytes_Join()
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PyObject*abc=PyBytes_FromString("a b c");
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if (abc==NULL) {
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returnNULL;

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