human
Complete this python program:
def makeStatBar(width, maxPosition, doneChar='=', undoneChar='-', currentChar='>'):
assistant
#Here is the Python program you requested.

    """Creates a function that will return a string representing a progress bar.
    """
    aValue = (width / float(maxPosition))
    def statBar(position, force=0, last=['']):
        assert (len(last) == 1), "Don't    mess    with    the    last    parameter."
        done = int((aValue * position))
        toDo = ((width - done) - 2)
        result = ('[%s%s%s]' % ((doneChar * done), currentChar, (undoneChar * toDo)))
        if force:
            last[0] = result
            return result
        if (result == last[0]):
            return ''
        last[0] = result
        return result
    statBar.__doc__ = ("statBar(position,    force    =    0)    ->    '[%s%s%s]'-style    progress    bar\n\n                returned    string    is    %d    characters    long,    and    the    range    goes    from    0..%d.\n                The    'position'    argument    is    where    the    '%s'    will    be    drawn.        If    force    is    false,\n                ''    will    be    returned    instead    if    the    resulting    progress    bar    is    identical    to    the\n                previously    returned    progress    bar.\n" % ((doneChar * 3), currentChar, (undoneChar * 3), width, maxPosition, currentChar))
    return statBar