[python-win32] Threading Issue

James Matthews nytrokiss at gmail.com
Tue Jul 3 23:42:30 CEST 2007


Thanks Emlyn

Just one more issue i have here. When i pass a string as an argument to the
thread it seems to call the method returning the string as a tuple and i get
an error that the method gets 48 arguments and it can only accept 2?

If this doesn't make sense here is the code.

for links in urls:
            links_thread =
threading.Thread(target=self.next_page_finder,args=links)
# Links is a string
            threaded_objects.append(links_thread)
I get this error:
Exception in thread Thread-1:
Traceback (most recent call last):
  File "C:\Python25\lib\threading.py", line 460, in __bootstrap
    self.run()
  File "C:\Python25\lib\threading.py", line 440, in run
    self.__target(*self.__args, **self.__kwargs)
TypeError: next_page_finder() takes exactly 2 arguments (48 given)

Thanks

James


On 7/3/07, Emlyn Jones <emlynj at gmail.com> wrote:
>
> On 7/3/07, Emlyn Jones <emlynj at gmail.com> wrote:
> > On 7/3/07, Tim Roberts <timr at probo.com> wrote:
> > James Matthews wrote:
> > > > So i need to make the list a global variable
> > >
> > > No, that's not what he did at all.  The names just happened to be the
> > > same, that's all.  Consider it this way:
> > >
> > >     import threading
> > >     def foo( threadresult ):
> > >         threadresult.extend( range(4) )
> > >
> > >     result = list()
> > >     thread = threading.Thread(target=foo, args=(result,))
> > >     thread.start()
> > >     result
> > >
>
> How about using an object derived from Thread and making 'result' a
> member of it?
>
> http://docs.python.org/lib/thread-objects.html
>
> You'd probably also want a variable to tell you if the function has
> finished.
>
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