Python 打包程序判断是否已经运行

代码如下：

 1 # -*- coding: UTF8 -*-

 2 from win32com.client import Dispatch

 3 import win32com

 4 import sys, os

 5 from PyQt4 import QtCore, QtGui

 6 

 7 class Logicpy(QtGui.QWidget):

 8     def __init__(self):

 9         super(Logicpy, self).__init__()

10         self.resize(100, 100)

11         mythis = os.path.basename(os.path.realpath(sys.argv[0]))   # 获得当前文件的名字

12         exist = self.proc_exist(mythis)

13         if exist:

14             Ok = QtGui.QMessageBox.question(self, (u'提示'),(u'已经运行'), QtGui.QMessageBox.Yes)

15             if Ok == QtGui.QMessageBox.Yes:

16                 exit()

17                 # QtCore.QCoreApplication.quit()

18                 # QtGui.qApp.quit  # 退出

19 

20     #判断该进程是否存在

21     def proc_exist(self, process_name):

22         is_exist = False

23         wmi = win32com.client.GetObject('winmgmts:')

24         processCodeCov = wmi.ExecQuery('select * from Win32_Process where name=\"%s\"' %(process_name))

25         if len(processCodeCov) > 2:

26             is_exist = True

27         return is_exist

28 

29 

30 

31 if __name__ == "__main__":

32     app = QtGui.QApplication(sys.argv)

33     Logic = Logicpy()

34     Logic.show()

35     sys.exit(app.exec_())

效果：