Python urllib3 urlopen 不使用特定错误的重试

Question

为什么 urllib3 中的 urlopen 在遇到 ReadTimeoutError 时不重试？我错过了什么吗？我可以使用自己的重试代码来解决这个问题，但我更愿意使用模块中的重试代码。

我什至试图明确地将 retries=3 作为 HTTPSConnectionPool.request() 的参数，但它没有帮助...

这是我的代码:

conn = urllib3.HTTPConnectionPool(host, port=port)
return conn.request(method, api_url, data, retries=3, 
                    timeout=urllib3.Timeout(connect=2, read=3))

谢谢!

编辑:

现在，带有一些调试信息的响应(这是来自 openERP 的日志):

2014-06-18 08:36:42,791 5585 DEBUG test 
openerp.addons.myaddon.xml_request.xml_request: args prepared
2014-06-18 08:36:42,791 DEBUG Added an stderr logging handler to logger: 
urllib3
2014-06-18 08:36:42,791 5585 DEBUG test urllib3: Added an stderr logging 
handler to logger: urllib3
2014-06-18 08:36:42,792 INFO Starting new HTTPS connection (1): 
some.host.com
2014-06-18 08:36:42,792 5585 INFO test urllib3.connectionpool: Starting new 
HTTPS connection (1): some.host.com
2014-06-18 08:36:43,699 DEBUG Setting read timeout to 10
2014-06-18 08:36:43,699 5585 DEBUG test urllib3.connectionpool: Setting read 
timeout to 10
2014-06-18 08:36:53,722 5585 ERROR test openerp.osv.osv: Uncaught exception
Traceback (most recent call last):
  File "/home/openerp/server/openerp/osv/osv.py", line 132, in wrapper
    return f(self, dbname, *args, **kwargs)
  File "/home/openerp/server/openerp/osv/osv.py", line 199, in execute
    res = self.execute_cr(cr, uid, obj, method, *args, **kw)
  File "/home/openerp/server/openerp/osv/osv.py", line 187, in execute_cr
    return getattr(object, method)(cr, uid, *args, **kw)
  File "/home/openerp/custom_addons/myaddon/xml_request/xml_request.py", 
  line 260, in button_test
    self.request(cr, uid, ids[0], data, context=context)
  File "/home/openerp/custom_addons/myaddon/xml_request/xml_request.py", 
  line 234, in request
    config_rec.xml_port, 'POST', api_url, vals)
  File "/home/openerp/custom_addons/myaddon/xml_request/xml_request.py", 
  line 208, in connAndReq
    timeout=urllib3.Timeout(connect=5, read=10))
  File "/usr/lib/python2.7/dist-packages/urllib3/request.py", line 79, in 
  request
    **urlopen_kw)
  File "/usr/lib/python2.7/dist-packages/urllib3/request.py", line 142, in 
  request_encode_body
    **urlopen_kw)
  File "/usr/lib/python2.7/dist-packages/urllib3/connectionpool.py", line 
  574, in urlopen
    raise ReadTimeoutError(self, url, "Read timed out.")
ReadTimeoutError: HTTPSConnectionPool(host=u'some.host.com', port=443): Read 
timed out.

如您所见，ReadTimeoutError 在到期时间后立即抛出，没有重试。

Answer 1

看起来这是 urllib3 v1.8.2 中的错误。

应该是fixed here ，在 master 分支中可用。

新版本即将推出。带来不便敬请谅解。 :)