Class Task

source code

object --+
         |
        Task

Create a new Task when you have some long running function to run in the background, but which needs to do work in 'chunks'. Example:

>>> from zeroinstall import tasks
>>> def my_task(start):
        for x in range(start, start + 5):
                print "x =", x
                yield None

>>> tasks.Task(my_task(0))
>>> tasks.Task(my_task(10))
>>> mainloop()

Yielding None gives up control of the processor to another Task, causing the sequence printed to be interleaved. You can also yield a Blocker (or a list of Blockers) if you want to wait for some particular event before resuming (see the Blocker class for details).