我想使用 IBM Watson Discovery Services,但尝试使用时收到错误消息。错误信息是:WatsonException: Unauthorized: Access is denied due to invalid credentials
import sys
import os
import json
from watson_developer_cloud import DiscoveryV1
discovery = DiscoveryV1(
username="{bbbaaaaa}",
password="{aaaaaabbbb}",
version="2017-09-01"
)
qopts = {'query': 'enriched_text.entities.text:IBM'}
my_query = discovery.query('system', 'news', qopts)
print(json.dumps(my_query, indent=2))