def METHOD_NAME(fmt):
    """ Return the converter corresponding to a format name
    :param fmt: (string) the format name
    :returns: (module) the converter
    :raises ValueError: in case no exporter can be found
    """
    # Look dynamically which format is available
    for module_name in _iomodules:
        try:
            converter = importlib.import_module("." + module_name, "odemis.dataio")
        except (ValueError, TypeError, ImportError):
            logging.info("Import of converter %s failed", module_name, exc_info=True)
            continue  # module cannot be loaded
        if fmt == converter.FORMAT:
            return converter
    raise ValueError("No converter for format %s found" % fmt)