MemoryView 物件¶

Amemoryview object exposes the C levelbuffer interface as a Python object which can then be passed around likeany other object.

PyObject*PyMemoryView_FromObject(PyObject*obj)¶

回傳值：新的參照。 為穩定 ABI 的一部分.

Create a memoryview object from an object that provides the buffer interface.Ifobj supports writable buffer exports, the memoryview object will beread/write, otherwise it may be either read-only or read/write at thediscretion of the exporter.

PyBUF_READ¶

Flag to request a readonly buffer.

PyBUF_WRITE¶

Flag to request a writable buffer.

PyObject*PyMemoryView_FromMemory(char*mem,Py_ssize_tsize,intflags)¶

回傳值：新的參照。 為穩定 ABI 的一部分 自 3.7 版本開始.

Create a memoryview object usingmem as the underlying buffer.flags can be one ofPyBUF_READ orPyBUF_WRITE.

在 3.3 版被加入.

PyObject*PyMemoryView_FromBuffer(constPy_buffer*view)¶

回傳值：新的參照。 為穩定 ABI 的一部分 自 3.11 版本開始.

Create a memoryview object wrapping the given buffer structureview.For simple byte buffers,PyMemoryView_FromMemory() is the preferredfunction.

PyObject*PyMemoryView_GetContiguous(PyObject*obj,intbuffertype,charorder)¶

回傳值：新的參照。 為穩定 ABI 的一部分.

Create a memoryview object to acontiguous chunk of memory (in either'C' or 'F'ortranorder) from an object that defines the bufferinterface. If memory is contiguous, the memoryview object points to theoriginal memory. Otherwise, a copy is made and the memoryview points to anew bytes object.

buffertype can be one ofPyBUF_READ orPyBUF_WRITE.

intPyMemoryView_Check(PyObject*obj)¶

Return true if the objectobj is a memoryview object. It is notcurrently allowed to create subclasses ofmemoryview. Thisfunction always succeeds.

Py_buffer*PyMemoryView_GET_BUFFER(PyObject*mview)¶

Return a pointer to the memoryview's private copy of the exporter's buffer.mviewmust be a memoryview instance; this macro doesn't check its type,you must do it yourself or you will risk crashes.

PyObject*PyMemoryView_GET_BASE(PyObject*mview)¶

Return either a pointer to the exporting object that the memoryview is basedon orNULL if the memoryview has been created by one of the functionsPyMemoryView_FromMemory() orPyMemoryView_FromBuffer().mviewmust be a memoryview instance.