In addition to the map() function's variants, a pool also has an apply(function, *args, **kw) method that we can use to pass one value to the worker pool. We can see that the map() method is really just a for loop wrapped around the apply() method. We can, for example, use the following command:
list( workers.apply(analysis, f) for f in glob.glob(pattern))
It's not clear, for our purposes, that this is a significant improvement. Almost everything we need to do can be expressed as a map() function.
