Slicer Class - grab an instance of SlicerClass and slice it. Pass this anonymously as an argument to get natural slices as arguments instead of using start, stop, step arguments. Works with arbitrarily complex slice arguments as they are just passed through. Usage: foo(slice_arg=slicer[2:7]) or foo(slice_arg=slicer[:2,...,3:4:-0.5]) or even foo(…

SlicerClass.py

class SlicerClass(object):
    '''
    slicerClass allows the creation of a slicer object.
    A slicer, when indexed with square brackets, will return a slice object.
    This allows a slice to be created and neatly passed as an argument.
    '''
    def __getitem__(self,val):
        return val
    def __len__ (self):
        return 0
slicer = SlicerClass()

Could be worthwhile extending this to allow exclusion slices and lists to be used as well as inclusion.