On Dec 7, 8:32 am, Adam Tauno Williams <awill...@whitemice.org> wrote: > On Mon, 2010-12-06 at 15:11 -0800, Nate wrote: > > Hello, > > I'm in the process of developing a task engine / workflow module for > > my Python application and I'm wondering if anyone knows of existing > > code that could be used or adapted. Since I know that's far too > > generic a question, let me share my goals: > > 1) Support long running operations (think backing up millions of > > files) where: > > - The operation can be paused (application closed) and the > > operation resumed later. > > - Individual tasks can be chained, run in parallel, or looped over > > (the workflow part) > > We have something like that in OIE (OpenGroupware Integration Engine). > <http://sourceforge.net/projects/coils/>. These things tend to turn out > to be quite specific [and thus not generic]. But if you have any > questions feel free to ask. The focus in OIE was the ability to > describe processes in BPML and facilitate process management [creating, > queuing, parking (stopping for later resume) of business / ETL tasks. > Parts of the code aren't especially elegant but it does move a fairly > large amount of data every day. > > > > > > > > > 2) Would like to graph each defined operation (task A starts task B > > with parameters... ) for documenting algorithms in Software Design > > Document > > 3) Each individual task in the operation would a self-contained > > class. I'd imagine implementing its action by defining a doTask() > > method > > Hopefully that's clear. I just feel like someone must have already > > solved this elegantly. I greatly enjoy Python and I look forward to > > proving its use as a valuable language for a Masters student even > > though everyone thinks I should use C# :-).
Thank you, I'll take a look at the project. At the very least, seeing someone else's solution would be helpful. I'm trying desperately hard to keep the code simple :-) -Nate -- http://mail.python.org/mailman/listinfo/python-list
