class BufferFullException(Exception):
    pass


class BufferEmptyException(Exception):
    pass


class CircularBuffer(object):
    def __init__(self):
        pass

class BufferFullException(Exception):
    pass


class BufferEmptyException(Exception):
    pass


class CircularBuffer(object):
    def __init__(self, capacity):
        pass

Add parameter capacity to circular-buffer example
Add parameter capacity to circular-buffer example

Fixes #550