providers.py 文件源码

def pick_best(title, item1, item2):
    """
    Pick best record among two items with identical scores.
    """
    def compare(x):
        return difflib.SequenceMatcher(None, title.lower(), x.lower()).ratio()
    if not item1['title']:
        return item2
    elif not item2['title']:
        return item2
    r1 = compare(item1['title'][0])
    r2 = compare(item2['title'][0])
    if r1 > r2:
        return item1
    elif r2 > r1:
        return item2
    else:
        # Try to find other discriminating criteria... e.g. prefer journal-articles
        if score_type(item1["type"]) > score_type(item2["type"]):
            return item1
        else:
            return item2