这个Python请求错误意味着什么?这是否意味着它尝试连接到服务器而不能? [Errno 8] nodename nor servname provided, or not known
是什么意思?
文件“python2.7 / site-packages / requests / api.py”,第55行,获取
文件“python2.7 / site-packages / requests / api.py”,第44行,请求
文件“python2.7 / site-packages / requests / sessions.py”,第279行,in 请求
文件“python2.7 / site-packages / requests / sessions.py”,第374行,in 发送
文件“python2.7 / site-packages / requests / adapters.py”,第209行,in 发送
ConnectionError:HTTPConnectionPool(host ='localhost',port = 8091):Max url:/ pools / default超出了重试次数(由:[Errno 8]提供nodename或servname,或者没有 已知
代码生成了这个:http://github.com...
class RestConnection(object):
def __init__(self, serverInfo):
#serverInfo can be a json object
if isinstance(serverInfo, dict):
self.ip = serverInfo["ip"]
self.username = serverInfo["username"]
self.password = serverInfo["password"]
self.port = serverInfo["port"]
self.couch_api_base = serverInfo.get("couchApiBase")
else:
self.ip = serverInfo.ip
self.username = serverInfo.rest_username
self.password = serverInfo.rest_password
self.port = serverInfo.port
self.couch_api_base = None
self.base_url = "http://{0}:{1}".format(self.ip, self.port)
server_config_uri = ''.join([self.base_url, '/pools/default'])
self.config = requests.get(server_config_uri).json()
# if couchApiBase is not set earlier, let's look it up
if self.couch_api_base is None:
#couchApiBase is not in node config before Couchbase Server 2.0
self.couch_api_base = self.config["nodes"][0].get("couchApiBase")
仅供参考,此错误是从Couchbase Python客户端生成的。
答案 0 :(得分:4)
这意味着您尝试访问的主机名的DNS查找失败。例如,如果我尝试查找无效的主机名,则会收到相同的错误:
>>> import requests
>>> requests.get('http://apsoapsodjaopisjdaoij.com')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/requests/api.py", line 65, in get
return request('get', url, **kwargs)
File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/requests/safe_mode.py", line 39, in wrapped
return function(method, url, **kwargs)
File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/requests/api.py", line 51, in request
return session.request(method=method, url=url, **kwargs)
File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/requests/sessions.py", line 241, in request
r.send(prefetch=prefetch)
File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/requests/models.py", line 631, in send
raise ConnectionError(sockerr)
requests.exceptions.ConnectionError: [Errno 8] nodename nor servname provided, or not known
检查serverInfo["ip"]
的值并确保其设置正确。
答案 1 :(得分:2)
为以后遇到这种情况的人增加我自己的经验。
事实证明,这实际上是因为我已达到系统上打开文件的最大数量。它与失败的连接或指示的DNS错误无关。
答案 2 :(得分:0)
错误的DNS,例如当您使用docker服务并在自己不在docker服务本身时调用http://host.docker.internal:8000
而不是http://localhost:8000
时。
答案 3 :(得分:0)
如果您在这里是因为twitter api给出了此错误,请尝试重新生成您的 不记名令牌,它将正常工作。