python-etcd3，python有什么用,import etc

python-etcd3，python有什么用,import etc

import etcd3etcd = etcd3.client(host="192.168.5.41", port=2379,                    ca_cert="E://ssl/kube-ca.pem",                    cert_cert="E://ssl/kube-etcd-192-168-5-41.pem",                    cert_key="E://ssl/kube-etcd-192-168-5-41-key.pem")                    print(etcd)  ## <etcd3.client.Etcd3Client object at 0x0000000002EC4240>result = etcd.get("/testkey")print(type(result))  ## <class 'tuple'>print(result[0])   ##  b'111111 'watch_count = 0events_iterator, cancel = etcd.watch_prefix("/testkey/")for event in events_iterator:    print(event)     ## <class 'etcd3.events.PutEvent'> key=b'/testkey/5' value=b'1234'        event_str = str(event)        print(isinstance(event, etcd3.events.PutEvent)) ## True        print("key = %s " % event_str.split(' ')[2].split('=')[1])      ## key = b'/testkey/5'        watch_count += 1    if watch_count > 10:        cancel()                

python-etcd3