urllib3 V1.8.3添加了“socket_options”功能。对我来说，我想在请求lib中指定（socket.SOL_SOCKET，socket.SO_REUSEADDR，1）。但我不知道怎么做。 Here是urllib3的版本更改日志。 以下是urllib3中新功能的示例：
def test_socket_options(self):
"""Test that connections accept socket options."""
# This test needs to be here in order to be run. socket.create_connection actually tries to
# connect to the host provided so we need a dummyserver to be running.
pool = HTTPConnectionPool(self.host, self.port, socket_options=[
(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
])
s = pool._new_conn()._new_conn() # Get the socket
using_keepalive = s.getsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE) > 0
self.assertTrue(using_keepalive)
s.close()
如果将1.8.3版本合并到新请求lib中，如何指定参数。 任何答案将不胜感激。
这是我的代码：
import requests
import socket
from requests.adapters import HTTPAdapter
from requests.packages.urllib3.poolmanager import PoolManager
class SourceAddressAdapter(HTTPAdapter):
def __init__(self, source_address, **kwargs):
self.source_address = source_address
super(SourceAddressAdapter, self).__init__(**kwargs)
def init_poolmanager(self, connections, maxsize, block=False):
self.poolmanager = PoolManager(num_pools=connections,
maxsize=maxsize,
block=block,
socket_options=[(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)],
source_address=self.source_address,
)
http_session = requests.Session()
http_session.mount('http://', SourceAddressAdapter(('0.0.0.0', 1238)))
print http_session.get('http://10.0.10.7')
这是错误：
Traceback (most recent call last):
File "./tt.py", line 27, in <module>
print http_session.get('http://10.0.10.7')
File "/usr/local/lib/python2.7/site-packages/requests-2.3.0-py2.7.egg/requests/sessions.py", line 468, in get
return self.request('GET', url, **kwargs)
File "/usr/local/lib/python2.7/site-packages/requests-2.3.0-py2.7.egg/requests/sessions.py", line 456, in request
resp = self.send(prep, **send_kwargs)
File "/usr/local/lib/python2.7/site-packages/requests-2.3.0-py2.7.egg/requests/sessions.py", line 559, in send
r = adapter.send(request, **kwargs)
File "/usr/local/lib/python2.7/site-packages/requests-2.3.0-py2.7.egg/requests/adapters.py", line 375, in send
raise ConnectionError(e, request=request)
requests.exceptions.ConnectionError: HTTPConnectionPool(host='10.0.10.7', port=80): Max retries exceeded with url: / (Caused by <class 'socket.error'>: [Errno 98] Address already in use)
=============================================== ================================
我曾尝试使用urllib3 v1.9设置（socket.SOL_SOCKET，socket.SO_REUSEADDR，1），但失败了。无法重用time_wait状态的源端口的原因可能是“（socket.SOL_SOCKET，socket.SO_REUSEADDR，1）”应在“socket.bind”之前配置。因此，即使我在“HTTPConnectionPool”中设置了REUSEADDR参数，也无法使用time_wait状态的src端口。太伤心了..
这是我的尝试：
#!/usr/bin/python
import socket
from urllib3 import (
encode_multipart_formdata,
HTTPConnectionPool,
)
pool = HTTPConnectionPool('10.0.10.7', 80,
socket_options=[(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)],
source_address=('10.0.10.11',1239))
r=pool.request('GET','/')
这是错误：
Traceback (most recent call last):
File "./aa.py", line 10, in <module>
r=pool.request('GET','/')
File "build/bdist.linux-x86_64/egg/urllib3/request.py", line 68, in request
File "build/bdist.linux-x86_64/egg/urllib3/request.py", line 81, in request_encode_url
File "build/bdist.linux-x86_64/egg/urllib3/connectionpool.py", line 579, in urlopen
File "build/bdist.linux-x86_64/egg/urllib3/connectionpool.py", line 579, in urlopen
File "build/bdist.linux-x86_64/egg/urllib3/connectionpool.py", line 579, in urlopen
File "build/bdist.linux-x86_64/egg/urllib3/connectionpool.py", line 559, in urlopen
File "build/bdist.linux-x86_64/egg/urllib3/util/retry.py", line 265, in increment
urllib3.exceptions.MaxRetryError: HTTPConnectionPool(host='10.0.10.7', port=80): Max retries exceeded with url: / (Caused by ProtocolError('Connection aborted.', error(98, 'Address already in use')))
答案 0 :(得分：1)
假设您已正确地将urllib3合并到请求中并且没有任何中断，您将使用传输适配器：
from requests.adapters import HTTPAdapter
class SockOpsAdapter(HTTPAdapter):
def __init__(self, options, **kwargs):
self.options = options
super(SourceAddressAdapter, self).__init__(**kwargs)
def init_poolmanager(self, connections, maxsize, block=False):
self.poolmanager = PoolManager(num_pools=connections,
maxsize=maxsize,
block=block,
socket_options=self.options)
然后你就这样使用它：
import requests
from requests.packages.urllib3.connection import HTTPConnection
options = HTTPConnection.default_socket_options + [
(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1),
]
s = requests.Session()
s.mount('http://', SockOpsAdapter(options))
s.mount('https://', SockOpsAdapter(options))
答案 1 :(得分：1)
我无法得到@Lukasa的工作答案，但我对其进行了修改并让以下工作，
import requests
import socket
from requests.adapters import HTTPAdapter
from requests.adapters import PoolManager
from requests.packages.urllib3.connection import HTTPConnection
class SockOpsAdapter(HTTPAdapter):
def __init__(self, options, **kwargs):
self.options = options
super(SockOpsAdapter, self).__init__()
def init_poolmanager(self, connections, maxsize, block=False):
print "init_poolmanager"
self.poolmanager = PoolManager(num_pools=connections,
maxsize=maxsize,
block=block,
socket_options=self.options)
options = HTTPConnection.default_socket_options + [
(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1),
]
print "build session"
s = requests.Session()
s.mount('http://', SockOpsAdapter(options))
s.mount('https://', SockOpsAdapter(options))
for i in xrange(0, 10):
print "sending request %i" % i
url = 'http://host:port' #put in a host/port here
headers = {'Content-Type':'text/plain', 'Accept':'text/plain'}
post_status = s.get(url, headers=headers)
print "Post Status Code = %s" % str(post_status.status_code)
print post_status.content[0:50]