A memoryview object exposes the C level buffer interface as a Python object which can then be passed around like
any other object.
PyObject *PyMemoryView_FromObject(PyObject *obj)
- Create a memoryview object from an object that provides the buffer interface.
If obj supports writable buffer exports, the memoryview object will be
readable and writable, other it will be read-only.
PyObject *PyMemoryView_FromBuffer(Py_buffer *view)
- Create a memoryview object wrapping the given buffer structure view.
The memoryview object then owns the buffer represented by view, which
means you shouldn’t try to call PyBuffer_Release() yourself: it
will be done on deallocation of the memoryview object.
PyObject *PyMemoryView_GetContiguous(PyObject *obj, int buffertype, char order)
- Create 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.
int PyMemoryView_Check(PyObject *obj)
- Return true if the object obj is a memoryview object. It is not
currently allowed to create subclasses of memoryview.
Py_buffer *PyMemoryView_GET_BUFFER(PyObject *obj)
- Return a pointer to the buffer structure wrapped by the given
memoryview object. The object must be a memoryview instance;
this macro doesn’t check its type, you must do it yourself or you
will risk crashes.