Load a bottle application from a module and make sure that the import
        does not affect the current default application, but returns a separate
        application object. See :func:`load` for the target parameter.

def load_app(target):
    """ Load a bottle application from a module and make sure that the import
        does not affect the current default application, but returns a separate
        application object. See :func:`load` for the target parameter. """
    global NORUN
    NORUN, nr_old = True, NORUN
    tmp = default_app.push()  # Create a new "default application"
    try:
        rv = load(target)  # Import the target module
        return rv if callable(rv) else tmp
    finally:
        default_app.remove(tmp)  # Remove the temporary added default application
        NORUN = nr_old