One thing I love about Lisp is that it's
    ridiculously easy to write (cons item some-list),
    or even (cons item1 (cons item2 some-list)).

    >>> from itertools import chain
    >>> some_list = range(5)
    >>> item = 99
    >>> a = chain([item], some_list)
    >>> for x in a:
    ...     print x
    ...
    99
    0
    1
    2
    3
    4