def __gt__(self, other):

        return not (self.__lt__(other) or self.__eq__(other))

    def __le__(self, other):

        return self.__eq__(other) or self.__lt__(other)

    def __ge__(self, other):

        return self.__eq__(other) or self.__gt__(other)

def suggest_normalized_version(s):

    """Suggest a normalized version close to the given version string.

    If you have a version string that isn't rational (i.e. NormalizedVersion

    doesn't like it) then you might be able to get an equivalent (or close)

    rational version from this function.

    This does a number of simple normalizations to the given string, based

    on observation of versions currently in use on PyPI. Given a dump of

    those version during PyCon 2009, 4287 of them:

    - 2312 (53.93%) match NormalizedVersion without change

    - with the automatic suggestion

    - 3474 (81.04%) match when using this suggestion method

    :param s {str} An irrational version string.

    :returns: A rational version string, or None, if couldn't determine one.

    """

    try:

        NormalizedVersion(s)

        return s   # already rational

    except IrrationalVersionError:

        pass

    rs = s.lower()

    # part of this could use maketrans

    for orig, repl in (('-alpha', 'a'), ('-beta', 'b'), ('alpha', 'a'),

                       ('beta', 'b'), ('rc', 'c'), ('-final', ''),

                       ('-pre', 'c'),

                       ('-release', ''), ('.release', ''), ('-stable', ''),

                       ('+', '.'), ('_', '.'), (' ', ''), ('.final', ''),

                       ('final', '')):

        rs = rs.replace(orig, repl)

    # if something ends with dev or pre, we add a 0

    rs = re.sub(r"pre$", r"pre0", rs)

    rs = re.sub(r"dev$", r"dev0", rs)

    # if we have something like "b-2" or "a.2" at the end of the

    # let's remove the dash or dot

    rs = re.sub(r"([abc|rc])[\-\.](\d+)$", r"\1\2", rs)

    # 1.0-dev-r371 -> 1.0.dev371

    # 0.1-dev-r79 -> 0.1.dev79

    rs = re.sub(r"[\-\.](dev)[\-\.]?r?(\d+)$", r".\1\2", rs)

    # Clean: 2.0.a.3, 2.0.b1, 0.9.0~c1

    rs = re.sub(r"[.~]?([abc])\.?", r"\1", rs)

    # Clean: v0.3, v1.0

    if rs.startswith('v'):

        rs = rs[1:]

    # Clean leading '0's on numbers.

    #TODO: unintended side-effect on, e.g., "2003.05.09"

    # PyPI stats: 77 (~2%) better

    rs = re.sub(r"\b0+(\d+)(?!\d)", r"\1", rs)

    # Clean a/b/c with no version. E.g. "1.0a" -> "1.0a0". Setuptools infers

    # zero.

    # PyPI stats: 245 (7.56%) better

    rs = re.sub(r"(\d+[abc])$", r"\g<1>0", rs)

    # the 'dev-rNNN' tag is a dev tag

    rs = re.sub(r"\.?(dev-r|dev\.r)\.?(\d+)$", r".dev\2", rs)

    # clean the - when used as a pre delimiter

    rs = re.sub(r"-(a|b|c)(\d+)$", r"\1\2", rs)

    # a terminal "dev" or "devel" can be changed into ".dev0"

    rs = re.sub(r"[\.\-](dev|devel)$", r".dev0", rs)

    # a terminal "dev" can be changed into ".dev0"

    rs = re.sub(r"(?![\.\-])dev$", r".dev0", rs)

    # a terminal "final" or "stable" can be removed

    rs = re.sub(r"(final|stable)$", "", rs)

    # The 'r' and the '-' tags are post release tags

    #   0.4a1.r10       ->  0.4a1.post10

    #   0.9.33-17222    ->  0.9.3.post17222

    #   0.9.33-r17222   ->  0.9.3.post17222

    rs = re.sub(r"\.?(r|-|-r)\.?(\d+)$", r".post\2", rs)

    # Clean 'r' instead of 'dev' usage:

    #   0.9.33+r17222   ->  0.9.3.dev17222

    #   1.0dev123       ->  1.0.dev123