Pyqtthreading (provided by netizens)

Import threading

Import sys, time

From pyqt4 import qtcore, qtgui

Import psutil

Import OS

 

Class mainwindow (qtgui. qmainwindow ):

Def _ init _ (Self ):

Super (mainwindow, self). _ init __()

 

Self. main_layout = qtgui. qvboxlayout ()

 

OK _button = qtgui. qpushbutton ("Run ")

OK _button.clicked.connect (self. OK)

Self. main_layout.addwidget (OK _button)

 

Cancel_button = qtgui. qpushbutton ("cancel ")

Cancel_button.clicked.connect (self. Cancel)

Self. main_layout.addwidget (cancel_button)

 

Central_widget = qtgui. qwidget ()

Central_widget.setlayout (self. main_layout)

Self. setcentralwidget (central_widget)

 

Def myevenlistener (self, stop_event ):

State = true

While State and not stop_event.isset ():

For I in range (10,100 ):

Time. Sleep (I * 1, 0.01)

Print '.' * I

 

Def OK (Self ):

Self. stop_event = threading. Event ()

Self. c_thread = threading. Thread (target = self. myevenlistener, argS = (self. stop_event ,))

Self. c_thread.start ()

 

Def cancel (Self ):

Self. stop_event.set ()

Self. Close ()

 

Def main ():

APP = qtgui. qapplication (SYS. argv)

Window = mainwindow ()

Window. Resize (480,320)

Window. Show ()

App.exe C _()

Main ()

 

 

Def kill_proc_tree (PID, including_parent = true ):

Parent = psutil. Process (PID)

If including_parent:

Parent. Kill ()

 

Me = OS. getpid ()

Kill_proc_tree (me)

:

Pyqtthreading (provided by netizens)