wxpython GUI and multiprocessing - how to send data back from the long running process
- by wxpydon
Hello everyone,
Trying to run a time consuming task from a wxpython GUI. The basic idea is to start the long time task from the GUI (pressing a button) and then, a static text on the dialog should be updated from it.
First I tried some threading (http://wiki.wxpython.org/LongRunningTasks and many other resourses seen), and I want to show back the messages using Publisher.class. It didn't went so well, after a message or two, the GUI seems to frozen.
Now I want to achieve that with multiprocessing. I have this method inside my 'GUI' class:
def do_update(self, e):
self.txt_updatemsg.SetLabel("Don't stop this \n")
...
pub = Publisher() # i tried also calling directly from dbob object
# Publisher() is a singleton so this must be useless?
pub.subscribe(self.__update_txt_message, ('updatedlg', 'message'))
dbob = dbutils.DBUtils() # DBUtils is the class with 'long time' tasks
dbob.publisher = pub
p = Process(target=self.do_update_process, args=(dbob,))
p.start()
while p.is_alive:
wx.Yield
def do_update_process(self, dbob):
dbob.do_update()
__update_txt_message is a simple function what sets the static text on dialog.
Question is: how can I send back some text messages from this Process (just simple text, that's all I need)
Thanks guys!
