#!/usr/bin/env python # -*- coding: utf-8 -*- """ Created on 2017年3月30日 @author: Irony @site: https://pyqt.site , https://github.com/PyQt5 @email: 892768447@qq.com @file: TestQSharedMemory @description: """ from PyQt5.QtWidgets import QWidget from Lib.Application import SharedApplication # @UnresolvedImport class Widget(QWidget): def __init__(self, *args, **kwargs): super(Widget, self).__init__(*args, **kwargs) if __name__ == "__main__": import sys, os print(os.getpid()) app = SharedApplication(sys.argv) if app.isRunning(): print("app have already running") sys.exit(0) w = Widget() w.show() sys.exit(app.exec_())