On 8 янв, 03:02, Phil Thompson <p...@riverbankcomputing.com> wrote:
> On Thu, 7 Jan 2010 13:03:24 -0800 (PST), h0uk <vardan.pogos...@gmail.com>
> wrote:
>
> > On 8 янв, 01:02, "Diez B. Roggisch" <de...@nospam.web.de> wrote:
> >> h0uk schrieb:
>
> >> > Hello.
>
> >> > I have the following code:
>
> >> > #workers = {}
> >> > QtCore.QThreadPool.globalInstance().setExpiryTimeout
> >> > (300000)
> >> >
> >> > QtCore.QThreadPool.globalInstance().setMaxThreadCount(1)
> >> > for i in range(1, int(userscnt) + 1):
> >> > work = wk.Worker(i)
> >> > # connect signals
> >> >
> >> > work.mmShowCaptcha.connect(self.show_captcha_dlg)
> >> > work.log.connect(self.handle_log)
> >> >
> >> > self.captcha_answer.connect(work.mmCaptchaAnswer)
> >> > work.setAutoDelete(True)
> >> >
>
> QtCore.QThreadPool.globalInstance().start(work)
>
>
>
>
>
> >> > On last line of code ( QtCore.QThreadPool.globalInstance().start
> >> > (work) ) i get an error:
>
> >> > SystemError: error return without exception set
>
> >> > What is wrong in my code??? Any advise???
>
> >> The error is on C-level. AFAIK it occurs when a Python-C-function
> >> returns "NULL" without setting an exception.
>
> >> It's hard to say where it really occurs. I'd use a debug-build of PyQt,
> >> and possibly Python, and then investigate using gdb.
>
> >> Alternatively, what happens when you do some "dummy"-work that doesn't
> >> use signals and no other libraries?
>
> >> Diez
>
> > About some "dummy" code:
>
> > #!/usr/bin/env python
> > # -*- coding: utf-8 -*-
>
> > import sys
> > import os
> > import time
>
> > from PyQt4 import QtCore, QtGui
>
> > class Job(QtCore.QRunnable):
> > def __init__(self, name):
> > QtCore.QRunnable.__init__(self)
> > self._name = name
>
> > def run(self):
> > time.sleep(10)
> > print self._name
>
> > def autoDelete(self):
> > return self._auto
>
> > def setAutoDelete(self, auto):
> > self._auto = auto
>
> > if __name__ == "__main__":
>
> > app = QtGui.QApplication(sys.argv)
>
> > QtCore.QThreadPool.globalInstance().setMaxThreadCount(1)
>
> > j = Job("Job-1")
> > j.setAutoDelete(True)
> > QtCore.QThreadPool.globalInstance().start(j)
>
> > Even this code not work. On the last line of code
> > ( QtCore.QThreadPool.globalInstance().start(j) ) i get the error:
>
> >>> An unhandled win32 exception occured in python.exe
>
> You aren't letting the thread run before exiting the program. Try adding...
>
> app.exec_()
>
> ...after you call start().
>
> Also, I'm not sure what you are trying to achieve with your implementations
> of autoDelete() and setAutoDelete().
>
> Phil
Phil you right about app.exec_(). But situation is sligthly different.
I want to have more than one Job. I add these Jobs into QThreadPool
trough cycle. And I also want these Jobs to run sequentially.
The following code illustrate what I mean:
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import sys
import os
import time
from PyQt4 import QtCore, QtGui
class Job(QtCore.QRunnable):
def __init__(self, name):
QtCore.QRunnable.__init__(self)
self._name = name
def run(self):
time.sleep(3)
print self._name
if __name__ == "__main__":
app = QtGui.QApplication(sys.argv)
QtCore.QThreadPool.globalInstance().setMaxThreadCount(1)
for i in range(5):
j = Job("Job-" + str(i))
j.setAutoDelete(True)
QtCore.QThreadPool.globalInstance().start(j, i)
app.exec_()
After 5 cycle I get the same error: An unhandled win32 exception
occured in python.exe.
How I can do it?? To run my Jobs sequentially???
Vardan.
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