意外的关键字参数“缓冲”-python 客户端

Question

我收到错误消息，因为“getresponse() 有一个意外的关键字参数‘缓冲’”。完整的错误日志是：

[INFO              ] Kivy v1.8.0
[INFO              ] [Logger      ] Record log in C:\Users\Sudheer\.kivy\logs\kivy_14-08-15_21.txt
[INFO              ] [Factory     ] 157 symbols loaded
[DEBUG             ] [Cache       ] register <kv.lang> with limit=None, timeout=Nones
[DEBUG             ] [Cache       ] register <kv.image> with limit=None, timeout=60s
[DEBUG             ] [Cache       ] register <kv.atlas> with limit=None, timeout=Nones
[INFO              ] [Image       ] Providers: img_tex, img_dds, img_pygame, img_gif (img_pil ignored)
[DEBUG             ] [Cache       ] register <kv.texture> with limit=1000, timeout=60s
[DEBUG             ] [Cache       ] register <kv.shader> with limit=1000, timeout=3600s
[DEBUG             ] [App         ] Loading kv <D:\OS Files\workspace\Assistant\start.kv>
[INFO              ] [Text        ] Provider: pygame
[DEBUG             ] [Cache       ] register <kv.loader> with limit=500, timeout=60s
[INFO              ] [Loader      ] using a thread pool of 2 workers
[DEBUG             ] [Cache       ] register <textinput.label> with limit=None, timeout=60.0s
[DEBUG             ] [Cache       ] register <textinput.width> with limit=None, timeout=60.0s
[DEBUG             ] [Window      ] Ignored <egl_rpi> (import error)
[INFO              ] [Window      ] Provider: pygame(['window_egl_rpi'] ignored)
[DEBUG             ] [Window      ] Display driver windib
[DEBUG             ] [Window      ] Actual window size: 800x600
[DEBUG             ] [Window      ] Actual color bits r8 g8 b8 a0
[DEBUG             ] [Window      ] Actual depth bits: 24
[DEBUG             ] [Window      ] Actual stencil bits: 8
[DEBUG             ] [Window      ] Actual multisampling samples: 2
GLEW initialization succeeded
[INFO              ] [GL          ] OpenGL version <b'3.3.0'>
[INFO              ] [GL          ] OpenGL vendor <b'NVIDIA Corporation'>
[INFO              ] [GL          ] OpenGL renderer <b'GeForce 9400 GT/PCIe/SSE2'>
[INFO              ] [GL          ] OpenGL parsed version: 3, 3
[INFO              ] [GL          ] Shading version <b'3.30 NVIDIA via Cg compiler'>
[INFO              ] [GL          ] Texture max size <8192>
[INFO              ] [GL          ] Texture max units <32>
[DEBUG             ] [Shader      ] Fragment compiled successfully
[DEBUG             ] [Shader      ] Vertex compiled successfully
[DEBUG             ] [ImagePygame ] Load <C:\Kivy180\kivy\kivy\data\glsl\default.png>
[INFO              ] [Window      ] virtual keyboard not allowed, single mode, not docked
[DEBUG             ] [Atlas       ] Load <C:\Kivy180\kivy\kivy\data\..\data\images\defaulttheme.atlas>
[DEBUG             ] [Atlas       ] Need to load 1 images
[DEBUG             ] [Atlas       ] Load <C:\Kivy180\kivy\kivy\data\..\data\images\defaulttheme-0.png>
[DEBUG             ] [ImagePygame ] Load <C:\Kivy180\kivy\kivy\data\..\data\images\defaulttheme-0.png>
[INFO              ] [GL          ] NPOT texture support is available
[INFO              ] [OSC         ] using <thread> for socket
[DEBUG             ] [Base        ] Create provider from mouse
[DEBUG             ] [Base        ] Create provider from wm_touch
[DEBUG             ] [Base        ] Create provider from wm_pen
[INFO              ] [Base        ] Start application main loop
{'DoWorkResult': 'Working'}
http://localhost:9624/BasicServ.svc/auth/Authorize/admin/1234
[INFO              ] [Base        ] Leaving application in progress...
 Traceback (most recent call last):
   File "C:\Kivy180\Python33\lib\site-packages\requests-2.2.1-py3.3.egg\requests\packages\urllib3\connectionpool.py", line 313, in _make_request
     httplib_response = conn.getresponse(buffering=True)
 TypeError: getresponse() got an unexpected keyword argument 'buffering'

 During handling of the above exception, another exception occurred:

 Traceback (most recent call last):
   File "C:\Kivy180\Python33\lib\site-packages\requests-2.2.1-py3.3.egg\requests\packages\urllib3\connectionpool.py", line 480, in urlopen
     body=body, headers=headers)
   File "C:\Kivy180\Python33\lib\site-packages\requests-2.2.1-py3.3.egg\requests\packages\urllib3\connectionpool.py", line 315, in _make_request
     httplib_response = conn.getresponse()
   File "C:\Kivy180\Python33\lib\http\client.py", line 1147, in getresponse
     response.begin()
   File "C:\Kivy180\Python33\lib\http\client.py", line 358, in begin
     version, status, reason = self._read_status()
   File "C:\Kivy180\Python33\lib\http\client.py", line 320, in _read_status
     line = str(self.fp.readline(_MAXLINE + 1), "iso-8859-1")
   File "C:\Kivy180\Python33\lib\socket.py", line 297, in readinto
     return self._sock.recv_into(b)
 ConnectionResetError: [WinError 10054] An existing connection was forcibly closed by the remote host

 During handling of the above exception, another exception occurred:

 Traceback (most recent call last):
   File "C:\Kivy180\Python33\lib\site-packages\requests-2.2.1-py3.3.egg\requests\adapters.py", line 330, in send
     timeout=timeout
   File "C:\Kivy180\Python33\lib\site-packages\requests-2.2.1-py3.3.egg\requests\packages\urllib3\connectionpool.py", line 530, in urlopen
     raise MaxRetryError(self, url, e)
 requests.packages.urllib3.exceptions.MaxRetryError: HTTPConnectionPool(host='localhost', port=9624): Max retries exceeded with url: /BasicServ.svc/auth/Authorize/admin/1234 (Caused by <class 'ConnectionResetError'>: [WinError 10054] An existing connection was forcibly closed by the remote host)

 During handling of the above exception, another exception occurred:

 Traceback (most recent call last):
   File "D:\OS Files\workspace\Assistant\main.py", line 10, in <module>
     StartApp().run()
   File "C:\Kivy180\kivy\kivy\app.py", line 792, in run
     runTouchApp()
   File "C:\Kivy180\kivy\kivy\base.py", line 481, in runTouchApp
     EventLoop.window.mainloop()
   File "C:\Kivy180\kivy\kivy\core\window\window_pygame.py", line 381, in mainloop
     self._mainloop()
   File "C:\Kivy180\kivy\kivy\core\window\window_pygame.py", line 287, in _mainloop
     EventLoop.idle()
   File "C:\Kivy180\kivy\kivy\base.py", line 324, in idle
     self.dispatch_input()
   File "C:\Kivy180\kivy\kivy\base.py", line 309, in dispatch_input
     post_dispatch_input(*pop(0))
   File "C:\Kivy180\kivy\kivy\base.py", line 220, in post_dispatch_input
     listener.dispatch('on_motion', etype, me)
   File "_event.pyx", line 316, in kivy._event.EventDispatcher.dispatch (kivy\_event.c:4537)
     return handler(*largs)
   File "C:\Kivy180\kivy\kivy\core\window\__init__.py", line 645, in on_motion
     self.dispatch('on_touch_down', me)
   File "_event.pyx", line 316, in kivy._event.EventDispatcher.dispatch (kivy\_event.c:4537)
     return handler(*largs)
   File "C:\Kivy180\kivy\kivy\core\window\__init__.py", line 657, in on_touch_down
     if w.dispatch('on_touch_down', touch):
   File "_event.pyx", line 316, in kivy._event.EventDispatcher.dispatch (kivy\_event.c:4537)
     return handler(*largs)
   File "C:\Kivy180\kivy\kivy\uix\widget.py", line 284, in on_touch_down
     if child.dispatch('on_touch_down', touch):
   File "_event.pyx", line 316, in kivy._event.EventDispatcher.dispatch (kivy\_event.c:4537)
     return handler(*largs)
   File "C:\Kivy180\kivy\kivy\uix\widget.py", line 284, in on_touch_down
     if child.dispatch('on_touch_down', touch):
   File "_event.pyx", line 316, in kivy._event.EventDispatcher.dispatch (kivy\_event.c:4537)
     return handler(*largs)
   File "C:\Kivy180\kivy\kivy\uix\behaviors.py", line 93, in on_touch_down
     self.dispatch('on_press')
   File "_event.pyx", line 312, in kivy._event.EventDispatcher.dispatch (kivy\_event.c:4491)
     if handler(self, *largs):
   File "C:\Kivy180\kivy\kivy\lang.py", line 1299, in custom_callback
     exec(__kvlang__.co_value, idmap)
   File "D:\OS Files\workspace\Assistant\start.kv", line 65, in <module>
     on_press: root.Authorization(self,userid.text,password.text)
   File "D:\OS Files\workspace\Assistant\forms.py", line 18, in Authorization
     if self.loginclass.Authorization()== True:
   File "D:\OS Files\workspace\Assistant\classes.py", line 8, in Authorization
     return LoginAccess(self.userid, self.password)
   File "D:\OS Files\workspace\Assistant\dbcodes.py", line 9, in LoginAccess
     response = requests.get('http://localhost:9624/BasicServ.svc/auth/Authorize/'+userid+'/'+password,stream=False)
   File "C:\Kivy180\Python33\lib\site-packages\requests-2.2.1-py3.3.egg\requests\api.py", line 55, in get
     return request('get', url, **kwargs)
   File "C:\Kivy180\Python33\lib\site-packages\requests-2.2.1-py3.3.egg\requests\api.py", line 44, in request
     return session.request(method=method, url=url, **kwargs)
   File "C:\Kivy180\Python33\lib\site-packages\requests-2.2.1-py3.3.egg\requests\sessions.py", line 383, in request
     resp = self.send(prep, **send_kwargs)
   File "C:\Kivy180\Python33\lib\site-packages\requests-2.2.1-py3.3.egg\requests\sessions.py", line 486, in send
     r = adapter.send(request, **kwargs)
   File "C:\Kivy180\Python33\lib\site-packages\requests-2.2.1-py3.3.egg\requests\adapters.py", line 378, in send
     raise ConnectionError(e)
 requests.exceptions.ConnectionError: HTTPConnectionPool(host='localhost', port=9624): Max retries exceeded with url: /BasicServ.svc/auth/Authorize/admin/1234 (Caused by <class 'ConnectionResetError'>: [WinError 10054] An existing connection was forcibly closed by the remote host)

我的相关wcf服务代码是：

<OperationContract()>
    <WebGet(UriTemplate:="Authorize/{id}/{pw}", BodyStyle:=WebMessageBodyStyle.Wrapped, RequestFormat:=WebMessageFormat.Json, ResponseFormat:=WebMessageFormat.Json)>
    Function Authorize(ByVal id As String, ByVal pw As String)


 Function Authorize(ByVal id As String, ByVal pw As String) Implements IBasicServ.Authorize
        Dim c As New List(Of Guid)
        For i = 0 To 10
            c.Add(Guid.NewGuid)
        Next
        Return c
 End Function

python客户端的代码是：

import requests
import json

def LoginAccess(userid, password):
    response = requests.get('http://localhost:9624/BasicServ.svc/auth/test/')

    print (response.json())
    print('http://localhost:9624/BasicServ.svc/auth/Authorize/'+userid+'/'+password)
    response = requests.get('http://localhost:9624/BasicServ.svc/auth/Authorize/'+userid+'/'+password,stream=False)
    print (response.json())

第一个响应仅用于测试服务，它正在工作，第二个我收到错误。我会适当地为加密和 SSL 编写代码，但目前正试图让那个休息客户端工作。我也用 Stream=True 和 False 测试过，但是结果是一样的。

我用谷歌搜索，发现错误通常与请求模块旧有关，但我使用的是更新的。

请求模块是 2.2.1 带有 Kivy 的 Python 3.3 .net 4 上的 WCF

编辑： WCF Web 配置文件：

<?xml version="1.0"?>
<configuration>

  <system.web>
    <compilation debug="true" strict="false" explicit="true" targetFramework="4.0" />
  </system.web>
  <system.serviceModel>
    <services>
      <service behaviorConfiguration="ServBehav" name="AssistantWcf.BasicServ">
        <endpoint address="auth" behaviorConfiguration="EndBehav" binding="webHttpBinding" name="endpointname" contract="AssistantWcf.IBasicServ" />
      </service>
    </services>
    <behaviors>
      <endpointBehaviors>
        <behavior name="EndBehav">
          <webHttp/>
        </behavior>
      </endpointBehaviors>
      <serviceBehaviors>
        <behavior name="ServBehav">
          <!-- To avoid disclosing metadata information, set the value below to false before deployment -->
          <serviceMetadata httpGetEnabled="true" httpGetBinding="webHttpBinding" httpGetBindingConfiguration="" />
          <!-- To receive exception details in faults for debugging purposes, set the value below to true.  Set to false before deployment to avoid disclosing exception information -->
          <serviceDebug includeExceptionDetailInFaults="false"/>
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
  </system.serviceModel>
  <system.webServer>
    <modules runAllManagedModulesForAllRequests="true"/>
    <!--
        To browse web app root directory during debugging, set the value below to true.
        Set to false before deployment to avoid disclosing web app folder information.
      -->
    <directoryBrowse enabled="true"/>
  </system.webServer>

</configuration>

Answer 1

您似乎对 Python 3 不熟悉。它引入了一种新的回溯样式，这样您就可以最好地确定您的代码采用了哪条路径，从而有可能找到最终异常的来源。让我们检查一下您的回溯：

 Traceback (most recent call last):
   File "C:\Kivy180\Python33\lib\site-packages\requests-2.2.1-py3.3.egg\requests\packages\urllib3\connectionpool.py", line 313, in _make_request
     httplib_response = conn.getresponse(buffering=True)
 TypeError: getresponse() got an unexpected keyword argument 'buffering'

 During handling of the above exception, another exception occurred:

这里的重要是最后一行：“在处理上述异常期间，发生了另一个异常：”。这表明 TypeError: getresponse() got an unexpected keyword argument 'buffering' 不是导致程序停止的异常的来源，但它实际上是在发生不同异常时处理的。

您现在会注意到 “在处理上述异常期间，发生了另一个异常：” 在您粘贴的输出中又出现了几次，最后的跟踪以：

File "C:\Kivy180\Python33\lib\site-packages\requests-2.2.1-py3.3.egg\requests\adapters.py", line 378, in send
 raise ConnectionError(e)
requests.exceptions.ConnectionError: HTTPConnectionPool(host='localhost', port=9624): Max retries exceeded with url:
/BasicServ.svc/auth/Authorize/admin/1234
(Caused by <class 'ConnectionResetError'>:
    [WinError 10054] An existing connection was forcibly closed by the remote host)

我已经分解了最后一行以使其更具可读性（因此它不会滚动到一边）。您看到的异常是由服务器强行关闭打开的连接引起的。如果您使用的是 Session 对象，我通常希望看到这一点，因为默认情况下它会为您执行连接池，但您使用的是功能 API，它每次都会创建一个新的 Session 对象。这意味着如果这种情况反复发生，这里的服务器很可能行为不端。服务器拒绝响应您的请求并强行关闭已建立的连接。在尝试读取响应时，urllib3 收到WinError 异常，除了提供它自己的异常ConnectionResetError 之外，没有其他好的方法可以从中恢复。 Requests 然后捕获它并提出它自己的ConnectionError。

这里的问题似乎不是请求，而是行为不端的服务器。

---

附带说明，在 URL 中包含用户名和密码是一个非常糟糕的想法。我建议使用 HTTP Digest Authentication、HTTP Basic Authentication 或实施更安全的方法（如基于令牌的身份验证方案）进行调查。