import requests


def _getMetadataFromArxivId(id):
    """
    Get metadata from arXiv.org given an arXiv identifier.
    
    :param id: arXiv identifier to look up
    :returns: Result from arXiv api query
    """
    url = 'http://export.arxiv.org/api/query?id_list=' + id + '&start=0&max_results=2'
    return requests.get(url)