PyQt QThreadPool error
Hello.
I have the following code:
#workers = {}
QtCore.QThreadPool.globalInstance().setExpiryTimeout
(30)
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???
Thanks
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Re: PyQt QThreadPool error
On 8 янв, 01:02, "Diez B. Roggisch" wrote:
> h0uk schrieb:
>
>
>
> > Hello.
>
> > I have the following code:
>
> > #workers = {}
> > QtCore.QThreadPool.globalInstance().setExpiryTimeout
> > (30)
> > 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
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Re: PyQt QThreadPool error
On 8 янв, 02:25, "Diez B. Roggisch" wrote:
> h0uk schrieb:
>
>
>
> > On 8 янв, 01:02, "Diez B. Roggisch" wrote:
> >> h0uk schrieb:
>
> >>> Hello.
> >>> I have the following code:
> >>> #workers = {}
> >>> QtCore.QThreadPool.globalInstance().setExpiryTimeout
> >>> (30)
> >>> 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
>
> Hm. I suggest you take this to the PyQt mailinglist. Phil Thompson is
> very responsive.
>
> Diez
Thanks you, Diez. Thanks for your time.
I already wrote to PyQt mailing list, but yet no get answer.
I will be waiting and try to write Phil Thompson.
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Re: PyQt QThreadPool error
On 8 янв, 03:02, Phil Thompson wrote:
> On Thu, 7 Jan 2010 13:03:24 -0800 (PST), h0uk
> wrote:
>
> > On 8 янв, 01:02, "Diez B. Roggisch" wrote:
> >> h0uk schrieb:
>
> >> > Hello.
>
> >> > I have the following code:
>
> >> > #workers = {}
> >> > QtCore.QThreadPool.globalInstance().setExpiryTimeout
> >> > (30)
> >> >
> >> > 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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Re: Ask how to use HTMLParser
On 8 янв, 08:44, Water Lin wrote: > I am a new guy to use Python, but I want to parse a html page now. I > tried to use HTMLParse. Here is my sample code: > -- > from HTMLParser import HTMLParser > from urllib2 import urlopen > > class MyParser(HTMLParser): > title = "" > is_title = "" > def __init__(self, url): > HTMLParser.__init__(self) > req = urlopen(url) > self.feed(req.read()) > > def handle_starttag(self, tag, attrs): > if tag == 'div' and attrs[0][1] == 'articleTitle': > print "Found link => %s" % attrs[0][1] > self.is_title = 1 > > def handle_data(self, data): > if self.is_title: > print "here" > self.title = data > print self.title > self.is_title = 0 > --- > > For the tag > --- > open article title > --- > > I use my code to parse it. I can locate the div tag but I don't know how > to get the text for the tag which is "open article title" in my example. > > How can I get the html content? What's wrong in my handle_data function? > > Thanks > > Water Lin > > -- > Water Lin's notes and pencils:http://en.waterlin.org > Email: [email protected] Hi. Have you get errors or anything else??? What is wrong?? Vardan. -- http://mail.python.org/mailman/listinfo/python-list
Re: Ask how to use HTMLParser
On 8 янв, 08:44, Water Lin wrote: > I am a new guy to use Python, but I want to parse a html page now. I > tried to use HTMLParse. Here is my sample code: > -- > from HTMLParser import HTMLParser > from urllib2 import urlopen > > class MyParser(HTMLParser): > title = "" > is_title = "" > def __init__(self, url): > HTMLParser.__init__(self) > req = urlopen(url) > self.feed(req.read()) > > def handle_starttag(self, tag, attrs): > if tag == 'div' and attrs[0][1] == 'articleTitle': > print "Found link => %s" % attrs[0][1] > self.is_title = 1 > > def handle_data(self, data): > if self.is_title: > print "here" > self.title = data > print self.title > self.is_title = 0 > --- > > For the tag > --- > open article title > --- > > I use my code to parse it. I can locate the div tag but I don't know how > to get the text for the tag which is "open article title" in my example. > > How can I get the html content? What's wrong in my handle_data function? > > Thanks > > Water Lin > > -- > Water Lin's notes and pencils:http://en.waterlin.org > Email: [email protected] I want to say your code works well -- http://mail.python.org/mailman/listinfo/python-list
Re: Ask how to use HTMLParser
On 8 янв, 11:44, Water Lin wrote: > h0uk writes: > > On 8 янв, 08:44, Water Lin wrote: > >> I am a new guy to use Python, but I want to parse a html page now. I > >> tried to use HTMLParse. Here is my sample code: > >> -- > >> from HTMLParser import HTMLParser > >> from urllib2 import urlopen > > >> class MyParser(HTMLParser): > >> title = "" > >> is_title = "" > >> def __init__(self, url): > >> HTMLParser.__init__(self) > >> req = urlopen(url) > >> self.feed(req.read()) > > >> def handle_starttag(self, tag, attrs): > >> if tag == 'div' and attrs[0][1] == 'articleTitle': > >> print "Found link => %s" % attrs[0][1] > >> self.is_title = 1 > > >> def handle_data(self, data): > >> if self.is_title: > >> print "here" > >> self.title = data > >> print self.title > >> self.is_title = 0 > >> --- > > >> For the tag > >> --- > >> open article title > >> --- > > >> I use my code to parse it. I can locate the div tag but I don't know how > >> to get the text for the tag which is "open article title" in my example. > > >> How can I get the html content? What's wrong in my handle_data function? > > >> Thanks > > >> Water Lin > > >> -- > >> Water Lin's notes and pencils:http://en.waterlin.org > >> Email: [email protected] > > > I want to say your code works well > > But in handle_data I can't print self.title. I don't why I can't set the > self.title in handle_data. > > Thanks > > Water Lin > > -- > Water Lin's notes and pencils:http://en.waterlin.org > Email: [email protected] I have tested your code as : #!/usr/bin/env python # -*- conding: utf-8 -*- from HTMLParser import HTMLParser class MyParser(HTMLParser): title = "" is_title = "" def __init__(self, data): HTMLParser.__init__(self) self.feed(data) def handle_starttag(self, tag, attrs): if tag == 'div' and attrs[0][1] == 'articleTitle': print "Found link => %s" % attrs[0][1] self.is_title = 1 def handle_data(self, data): if self.is_title: print "here" self.title = data print self.title self.is_title = 0 if __name__ == "__main__": m = MyParser(""" open article title Ask how to use HTMLParser Parametrs """) All stuff printed and handled fine. Also, the 'print self.title' statement works fine. Try run my code. Vardan. -- http://mail.python.org/mailman/listinfo/python-list
Re: PyQt QThreadPool error
On 8 янв, 16:27, Phil Thompson wrote:
> On Thu, 7 Jan 2010 15:07:10 -0800 (PST), h0uk
> wrote:
>
> ...
>
>
>
> > 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???
>
> It's a PyQt bug. The workaround is not to use setAutoDelete() and instead
> keep an explicit reference to your Job instances - for example in a list of
> jobs.
>
> Phil
Thanks, Phil.
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