Memory leak with PyBytes_AsStringAndSize

[FGAIL87 0]

Hello,

I have a program in Delphi that gets the stream from a camera managed in Python.

I get the camera image using the following function GetPythonEngine.PyBytes_AsStringAndSize(camera.ValueObject,P,Len);

And I notice that there is a memory leak every time this function is called.

Specifically with the function GetPythonEngine.PyBytes_Check(camera.ValueObject); which is used by PyBytes_AsStringAndSize

Is anyone observing the same thing?

How can I solve the problem? Is there any other way to get the address and size of the camera variable?

 

[SwiftExpat 65]

Have you tried to finalize the variable? You have to call finalize before free.

 

In my constructor:

constructor TSERTCPythonEngine.Create;
begin
  inherited Create(true);
  PE := TPythonEngine.Create(nil);
  PythonIO := TPythonInputOutput.Create(nil);
  PythonResultVar := TPythonDelphiVar.Create(nil);
end

In my destructor

destructor TSERTCPythonEngine.Destroy;
begin
  PythonIO.Free;
  PyMod.Free;
  PythonResultVar.Finalize; // prevent memory leak
  PythonResultVar.Free;
  PE.Free;
  inherited;
end;

 

[FGAIL87 0]

My TPythonDelphiVar and TPythonEngine variables are only destroyed when the program is closed. So there is no problem on this side.

The memory leak happens every time the PyBytes_Check function is called. I see the program's memory increasing on the simple call of this function.

 

I'll try to use the solution with PIL mentioned below, which I had left aside.