Setup Maya logging, but be *really* defensive about it.

def _setup_maya():
    """Setup Maya logging, but be *really* defensive about it."""

    # We are having trouble with this in Mark Media. For some reason this
    # remains importable from a uifutures.host launched from Maya.
    return

    try:
        import maya.utils
    except ImportError:
        return

    # Remove the shell handler; we have created one ourselves.
    if hasattr(maya.utils, 'shellLogHandler'):
        maya_handler = logging.getLogger(os.environ.get('MAYA_DEFAULT_LOGGER_NAME'))
        maya_handler.removeHandler(maya.utils.shellLogHandler())

    # Change the default format on the UI handler.
    # TODO: Get some safety wrapping arounc this handler.
    if hasattr(maya.utils, 'guiLogHandler'):
        format = os.environ.get('MAYA_GUI_LOGGER_FORMAT')
        if not format:
            maya.utils.guiLogHandler().setFormatter(logging.Formatter(MAYA_FORMAT))