def remove_error_class(klass):
    """
    Removes a class from the L{ERROR_CLASS_MAP}.

    An example::

       >>> class AuthenticationError(Exception):
       ...     pass
       ...
       >>> pyamf.add_error_class(AuthenticationError, 'Auth.Failed')
       >>> pyamf.remove_error_class(AuthenticationError)

    @see: L{add_error_class}
    """
    if isinstance(klass, python.str_types):
        if klass not in ERROR_CLASS_MAP:
            raise ValueError('Code %s is not registered' % (klass,))
    elif isinstance(klass, python.class_types):
        classes = ERROR_CLASS_MAP.values()
        if klass not in classes:
            raise ValueError('Class %s is not registered' % (klass,))

        klass = ERROR_CLASS_MAP.keys()[classes.index(klass)]
    else:
        raise TypeError("Invalid type, expected class or string")

    del ERROR_CLASS_MAP[klass]