def find_wrapper(haystack, needle_uuid):
    """Finds the corresponding wrapper from a list given the UUID.

    :param haystack:  A list of wrappers.  Usually generated from a 'feed' that
                      has been loaded via the wrapper's wrap(response) method.
    :param needle_uuid: The UUID of the object to find in the list.
    :return: The corresponding wrapper for that UUID.  If not found, None.
    """
    for wrapper in haystack:
        if wrapper.uuid == needle_uuid:
            return wrapper
    return None
