Mercurial > cpython-lru_cache-weakref
diff Doc/c-api/buffer.rst @ 55729:d91aff206dfd 3.1
Merged revisions 74551 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k
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r74551 | benjamin.peterson | 2009-08-26 09:35:45 +0200 (Wed, 26 Aug 2009) | 1 line
the old buffer object doesn't exist in Python 3 #6659
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| author | Benjamin Peterson <benjamin@python.org> |
|---|---|
| date | Wed, 26 Aug 2009 07:38:00 +0000 |
| parents | 7b495c8f2a24 |
| children | 6f3855038919 57433b833b2a |
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--- a/Doc/c-api/buffer.rst Fri Aug 21 14:25:49 2009 +0000 +++ b/Doc/c-api/buffer.rst Wed Aug 26 07:38:00 2009 +0000 @@ -10,7 +10,6 @@ .. index:: - object: buffer single: buffer interface Python objects implemented in C can export a "buffer interface." These @@ -297,14 +296,25 @@ length. Return 0 on success and -1 (with raising an error) on error. +.. index:: + object: memoryview + + MemoryView objects ================== -A memoryview object is an extended buffer object that could replace the buffer -object (but doesn't have to as that could be kept as a simple 1-d memoryview -object). It, unlike :ctype:`Py_buffer`, is a Python object (exposed as -:class:`memoryview` in :mod:`builtins`), so it can be used with Python code. +A memoryview object exposes the C level buffer interface to Python. + .. cfunction:: PyObject* PyMemoryView_FromObject(PyObject *obj) Return a memoryview object from an object that defines the buffer interface. + + +.. cfunction:: PyObject * PyMemoryView_GetContiguous(PyObject *obj, int buffertype, char order) + + Return a memoryview object to a contiguous chunk of memory (in either + 'C' or 'F'ortran order) from an object that defines the buffer + interface. If memory is contiguous, the memoryview object points to the + original memory. Otherwise copy is made and the memoryview points to a + new bytes object.
