Python bson 模块，objectid() 实例源码

def get_oid(id_str):
    try:
        return bson.objectid.ObjectId(id_str)
    except bson.errors.InvalidId:
        return None

def str2id(document_id: str) -> bson.ObjectId:
    """Returns the document ID as ObjectID, or raises a BadRequest exception.

    :raises: wz_exceptions.BadRequest
    """

    if not document_id:
        log.debug('str2id(%r): Invalid Object ID', document_id)
        raise wz_exceptions.BadRequest('Invalid object ID %r' % document_id)

    try:
        return bson.ObjectId(document_id)
    except (bson.objectid.InvalidId, TypeError):
        log.debug('str2id(%r): Invalid Object ID', document_id)
        raise wz_exceptions.BadRequest('Invalid object ID %r' % document_id)