Hello.
There is a big problem with macOS Ventura 13.1.
I've made the simplest app for macOS 64-bit - one Form, one Button. It executes a very simple python script.
Everything works fine, but after closing the chart window, the application crashes with a message in a PAServer:
objc_disposeClassPair: class 'FMXWindow' still has subclasses, including 'NSKVONotifying_FMXWindow’!
In larger projects, the effect is stranger. What can be done to solve this problem?
P.S. It is also interesting that after running the script, the application icon changes to the Matplotlib icon.
unit MainUnit;
interface
uses
PythonEngine,
System.Classes,
FMX.Forms, FMX.Controls, FMX.Controls.Presentation, FMX.StdCtrls, FMX.Types;
type
TFormMain = class(TForm)
ButtonRun: TButton;
procedure FormCreate(Sender: TObject);
procedure ButtonRunClick(Sender: TObject);
private
py: TPythonEngine;
end;
var
FormMain: TFormMain;
implementation
{$R *.fmx}
procedure TFormMain.FormCreate(Sender: TObject);
begin
// Create python engine
py := TPythonEngine.Create(Self);
py.UseLastKnownVersion := True;
py.FatalAbort := False;
py.FatalMsgDlg := False;
// Load DLL
py.LoadDll;
end;
procedure TFormMain.ButtonRunClick(Sender: TObject);
begin
// Simple script, that uses matplotlib and Py-QT5
var s: ANSIString := 'import matplotlib.pyplot as plt'#10
+ 'plt.plot([1.6, 2.7])'#10
+ 'plt.show()';
py.ExecString(s);
end;
end.
Hello.
There is a big problem with macOS Ventura 13.1.
I've made the simplest app for macOS 64-bit - one Form, one Button. It executes a very simple python script.
Everything works fine, but after closing the chart window, the application crashes with a message in a PAServer:
objc_disposeClassPair: class 'FMXWindow' still has subclasses, including 'NSKVONotifying_FMXWindow’!In larger projects, the effect is stranger. What can be done to solve this problem?
P.S. It is also interesting that after running the script, the application icon changes to the Matplotlib icon.