[Python-ideas] ThreadPool worker function

[Luca Sbardella]

While using the ThreadPool in the multiprocessing.pool module, I needed to 
use a different implementation for the *worker* function. Since there is no 
way to overwrite it directly, I'm overwriting the Process attribute with a 
method:

def myworker(...):
    ...

class ThreadPool(pool.ThreadPool):
    
    def Process(self, target=None, **kwargs):
        return Thread(target=myworker, **kwargs)

which is good enough, works for 2.6 and up.
On the other hand, *worker* could be defined as a class attribute in the 
same way as the Process.

Something like this:

def default_worker(...):
    ...

class Pool(object):
    Process = Process
    worker = default_worker
    ...

Less verbose and less of a hack IMO.
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