def print_something(thing):
    "Print inputted thing"
    # The above is a docstring
    print '''Yow'''
    print thing

def sucker(s):
    print s

def add(n, m):
    '''
    >>> n = 3
    >>> add(n, 0)
    3
    >>> 3 + 1
    4
    >>> 'This is a long string' # doctest: +ELLIPSIS
    '...'
    '''
    return n + m

def _test():
    import doctest
    doctest.testmod()
    
if __name__ == "__main__":
    _test()