Skip to content

Navigation Menu

Sign in
Appearance settings

Search code, repositories, users, issues, pull requests...

Provide feedback

We read every piece of feedback, and take your input very seriously.

Saved searches

Use saved searches to filter your results more quickly

Sign up
Appearance settings

Application crash on macOS after closing the Py-QT5 window. #409

Open
@HawaiAl

Description

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.

Metadata

Metadata

Assignees

No one assigned

    Labels

    No labels
    No labels

    Projects

    No projects

    Milestone

    No milestone

      Relationships

      None yet

      Development

      No branches or pull requests

      Issue actions

        AltStyle によって変換されたページ (->オリジナル) /