(value, reversed_horizontal=False, reversed_vertical=False)
return result
Tries to interpret a string as an orientation value.

    The following basic values are understood: ``left-right``, ``bottom-top``,
    ``right-left``, ``top-bottom``. Possible aliases are:

      - ``horizontal``, ``horiz``, ``h`` and ``lr`` for ``left-right``

      - ``vertical``, ``vert``, ``v`` and ``tb`` for top-bottom.

      - ``lr`` for ``left-right``.

      - ``rl`` for ``right-left``.

    ``reversed_horizontal`` reverses the meaning of ``horizontal``, ``horiz``
    and ``h`` to ``rl`` (instead of ``lr``); similarly, ``reversed_vertical``
    reverses the meaning of ``vertical``, ``vert`` and ``v`` to ``bt``
    (instead of ``tb``).

    Returns one of ``lr``, ``rl``, ``tb`` or ``bt``, or throws ``ValueError``
    if the string cannot be interpreted as an orientation.
Tries to interpret a string as an orientation value.
Tries to interpret a string as an orientation value .
def str_to_orientation(value, reversed_horizontal=False, reversed_vertical=False):
    """Tries to interpret a string as an orientation value.

    The following basic values are understood: ``left-right``, ``bottom-top``,
    ``right-left``, ``top-bottom``. Possible aliases are:

      - ``horizontal``, ``horiz``, ``h`` and ``lr`` for ``left-right``

      - ``vertical``, ``vert``, ``v`` and ``tb`` for top-bottom.

      - ``lr`` for ``left-right``.

      - ``rl`` for ``right-left``.

    ``reversed_horizontal`` reverses the meaning of ``horizontal``, ``horiz``
    and ``h`` to ``rl`` (instead of ``lr``); similarly, ``reversed_vertical``
    reverses the meaning of ``vertical``, ``vert`` and ``v`` to ``bt``
    (instead of ``tb``).

    Returns one of ``lr``, ``rl``, ``tb`` or ``bt``, or throws ``ValueError``
    if the string cannot be interpreted as an orientation.
    """

    aliases = {
        "left-right": "lr",
        "right-left": "rl",
        "top-bottom": "tb",
        "bottom-top": "bt",
        "top-down": "tb",
        "bottom-up": "bt",
        "top-bottom": "tb",
        "bottom-top": "bt",
        "td": "tb",
        "bu": "bt",
    }

    dir = ["lr", "rl"][reversed_horizontal]
    aliases.update(horizontal=dir, horiz=dir, h=dir)

    dir = ["tb", "bt"][reversed_vertical]
    aliases.update(vertical=dir, vert=dir, v=dir)

    result = aliases.get(value, value)
    if result not in ("lr", "rl", "tb", "bt"):
        raise ValueError("unknown orientation: %s" % result)
    return result
def str_to_orientation ( value , reversed_horizontal = False , reversed_vertical = False ) : aliases = { "left-right" : "lr" , "right-left" : "rl" , "top-bottom" : "tb" , "bottom-top" : "bt" , "top-down" : "tb" , "bottom-up" : "bt" , "top-bottom" : "tb" , "bottom-top" : "bt" , "td" : "tb" , "bu" : "bt" , } dir = [ "lr" , "rl" ] [ reversed_horizontal ] aliases . update ( horizontal = dir , horiz = dir , h = dir ) dir = [ "tb" , "bt" ] [ reversed_vertical ] aliases . update ( vertical = dir , vert = dir , v = dir ) result = aliases . get ( value , value ) if result not in ( "lr" , "rl" , "tb" , "bt" ) : raise ValueError ( "unknown orientation: %s" % result ) return result