| Because UNIX uses priorities between +20 and -20 and Windows, via | Process and Thread priorities, allows settings between 0 and 31, a | uniform setting for each system should be derived. This would be | accomplished by giving process priority in terms of a floating-point | value between 0.0 and 1.0 for lowest and highest possible priority, | respectively.
I would rather that the feature use the -20 to 20 priorities and map that appropriately to the Windows range on Windows. -- http://mail.python.org/mailman/listinfo/python-list