pro = ts.pro_api()
#查询当前所有正常上市交易的股票列表
data = pro.stock_basic(exchange='', list_status='L', fields='ts_code,symbol,name,area,industry,list_date')
ConnectionError: HTTPConnectionPool(host='api.waditu.com', port=80): Max retries exceeded with url: / (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x00000263BFDA1CA0>: Failed to establish a new connection: [Errno 11001] getaddrinfo failed'))