[Clam-devel] Re: Task Runner removed?

David García Garzón dgarcia at iua.upf.edu
Sun Aug 17 04:18:08 PDT 2008

On Diumenge 17 Agost 2008, Jun Jun wrote:
> yes, in the commit rev11997 I removed the Task Runner in Annotator, but it
> is not for that problem I met (which is temporarily calmed down by
> commenting out the 'addDockWidget').
> I replaced the Task Runner with QProcess::execute to check whether the
> second one can execute .py executable file in Annotator. The answer is NO.
> By the way, you used to suggest the second: "Maybe using taskRunner is not
> such a good idea, because it makes the whole thing asyncronous, meaning
> that while saving, the user can manipulate the descriptors, and you have to
> deal with the state when the task is done, which is complex...."

Yes, but i was thinking on a modal taskRunner window which gives no access to 
the rest of the application functionality. Current solution just freezes the 
interface until the extractor is done which may seem that the application is 
not responding.

> The Task Runner can be reverted, if needed?

If it implies not advance and you still have python problems, yes, you should 
revert it. It gives the user information on what's happening and we should 
not loose that.

I think that the problem is that the system doesn't consider python scripts as 
executables. So the solution is to call python interpret. I can figure out 
some solutions:

* First check whether the problem is that python has registered .py files as 
executable but we are trying to execute an extensionless script (which is 
nice on linux but maybe inconvenient on windows) Try whether executing 
scripts with the .py extension work, if so, do a caller script that redirects 
the call to the extensionless script.
* Another solution could be configuring the extractor as 'python script.py' 
instead of 'script.py'. That could work but i think it won't. Just because in 
command + parameter list interface of QProcess, the first is the command and 
we are adding the script which is a parameter in this form.
* So, the next would be try the same using the single string interface. It 
should work but the problem here is handling properly song files with spaces.
* Using an intermediate .bat file that does the 'python script.py' call.
* Using py2exe or similar in windows

> Maybe that problem can be fixed by the replacement. I'll try it anyway.
> (intending to sacrifice this sunday to gain the commit rev12000!!)

¬¬   ;-)

David García Garzón
(Work) dgarcia at iua dot upf anotherdot es
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