Issue about memory release

[hesilong]

hello! Recently I am using your api to call python methods. But I found a problem that has not been resolved, when I finished calling python's method. The memory did not come down. I'm not sure Whether my method is correct or not. The code is like belows: ` func (this TAiCall) SendSgfToPn(inMsg string, inBoardSize byte, outCArr C.CArray) {

if outCArr == nil {
    return
}

var (
    res   *python.PyObject
    sgf   string
    value C.float
    index int = 0
    cc    *python.PyObject 
)

sgf = inMsg

if inBoardSize == 19 {
    if TensorPn19Call == nil {
        return
    }
    bArgs := python.PyTuple_New(1)
    cc = PyStr(sgf)
    python.PyTuple_SetItem(bArgs, 0, cc)
    res = TensorPn19Call.Call(bArgs, python.Py_None)

    if res == nil {
        return
    }

}

if inBoardSize == 13 {
    if TensorPn13Call == nil {
        return
    }
    bArgs := python.PyTuple_New(1)
    cc = PyStr(sgf)
    python.PyTuple_SetItem(bArgs, 0, cc)
    res = TensorPn13Call.Call(bArgs, python.Py_None)

    if res == nil {
        return
    }

}

size := python.PyList_Size(res)

for i := 0; i < size; i++ {
    res2 := python.PyList_GetItem(res, i)
    insize := python.PyList_Size(res2)
    for j := 0; j < insize; j++ {
        finaldata := python.PyList_GetItem(res2, j)
        value = C.float(python.PyFloat_AsDouble(finaldata))
        C.SetCArrayValue(outCArr, C.int(index), unsafe.Pointer(&value), C._Float)
        index++
        finaldata.Clear()
    }
    res2.Clear()

}

res.Clear()

return

} ` And Memory Supervision is like this:

From the picture, we can see the memory increases madly. Can the Clear Method release the memory that the List occupied or is there another method to realize the GC?

[sbinet]

I won't be able to debug this before next week. But you should look into the python C API and check what are the ownerships of the objects you create and who takes ownership of what. go-python exposes the python C API, with all its quirks, you can't make the economy of knowing its idioms.

[hesilong]

Thank you all the same! We'll try again! And If you have any idea later, please tell me !

[hesilong]

We just tested our code and I find that the memory leaks have nothing with your code! Thanks for your reply!