Urllib2 - Django - Broken Pipe

I am new to Django and I am experiencing some troubles posting data to a django webapp.

On the django side I have a form (backed by couchdb - couchdbkit django ext.). On the client side I post data with urllib2, in bulk (going through a list of data to post one by one)

data = urllib.urlencode(param)
req = urllib2.Request(OBJECT_SERVICE_URL + '/objects/create/', data)
req.add_header('Content-type', 'application/x-www-form-urlencoded')
res = urllib2.urlopen(req)
res.close()

After one record (one post passing), it get the message below, running again the next line passes and I have again this message :

       res = urllib2.urlopen(req)
  File "/usr/lib/python2.6/urllib2.py", line 126, in urlopen
    return _opener.open(url, data, timeout)
  File "/usr/lib/python2.6/urllib2.py", line 397, in open
    response = meth(req, response)
  File "/usr/lib/python2.6/urllib2.py", line 510, in http_response
    'http', request, response, code, msg, hdrs)
  File "/usr/lib/python2.6/urllib2.py", line 435, in error
    return self._call_chain(*args)
  File "/usr/lib/python2.6/urllib2.py", line 369, in _call_chain
    result = func(*args)
  File "/usr/lib/python2.6/urllib2.py", line 518, in http_error_default
    raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)
  urllib2.HTTPError: HTTP Error 500: INTERNAL SERVER ERROR

The server says :

    Traceback (most recent call last):
  File "/usr/local/lib/python2.6/dist-packages/django/core/servers/basehttp.py", line 284, in run
    self.finish_response()
  File "/usr/local/lib/python2.6/dist-packages/django/core/servers/basehttp.py", line 324, in finish_response
    self.write(data)
  File "/usr/local/lib/python2.6/dist-packages/django/core/servers/basehttp.py", line 420, in write
    self._write(data)
  File "/usr/lib/python2.6/socket.py", line 318, in write
----------------------------------------
Exception happened during processing of request from ('127.0.0.1', 59571)
    self.flush()
  File "/usr/lib/python2.6/socket.py", line 297, in flush
    self._sock.sendall(buffer(data, write_offset, buffer_size))
error: [Errno 104] Connection reset by peer
Traceback (most recent call last):
  File "/usr/lib/python2.6/SocketServer.py", line 283, in _handle_request_noblock
----------------------------------------
    self.process_request(request, client_address)
  File "/usr/lib/python2.6/SocketServer.py", line 309, in process_request
    self.finish_request(request, client_address)
  File "/usr/lib/python2.6/SocketServer.py", line 322, in finish_request
    self.RequestHandlerClass(request, client_address, self)
  File "/usr/local/lib/python2.6/dist-packages/django/core/servers/basehttp.py", line 570, in __init__
    BaseHTTPRequestHandler.__init__(self, *args, **kwargs)
  File "/usr/lib/python2.6/SocketServer.py", line 618, in __init__
    self.finish()
  File "/usr/lib/python2.6/SocketServer.py", line 661, in finish
    self.wfile.flush()
  File "/usr/lib/python2.6/socket.py", line 297, in flush
    self._sock.sendall(buffer(data, write_offset, buffer_size))
error: [Errno 32] Broken pipe

I must state that I am working on the embedded django development web server...

And here is the output of the test :

======================================================================
ERROR: test_create_object (objects.tests.ObjectAppTest)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/patrick/workspace_py/objects/tests.py", line 21, in test_create_object
    rs = c.post('/objects/create/', param)
  File "/usr/local/lib/python2.6/dist-packages/django/test/client.py", line 455, in post
    response = super(Client, self).post(path, data=data, content_type=content_type, **extra)
  File "/usr/local/lib/python2.6/dist-packages/django/test/client.py", line 256, in post
    return self.request(**r)
  File "/usr/local/lib/python2.6/dist-packages/django/test/client.py", line 387, in request
    response = self.handler(environ)
  File "/usr/local/lib/python2.6/dist-packages/django/test/client.py", line 84, in __call__
    response = self.get_response(request)
  File "/usr/local/lib/python2.6/dist-packages/django/core/handlers/base.py", line 169, in get_response
    response = self.handle_uncaught_exception(request, resolver, sys.exc_info())
  File "/usr/local/lib/python2.6/dist-packages/django/core/handlers/base.py", line 218, in handle_uncaught_exception
    return callback(request, **param_dict)
  File "/home/patrick/workspace_py/env/lib/python2.6/site-packages/coffin/views/defaults.py", line 34, in server_error
    content = render_to_string(template_name, Context({}))
  File "/home/patrick/workspace_py/env/lib/python2.6/site-packages/coffin/template/loader.py", line 50, in render_to_string
    template = get_template(template_name)
  File "/home/patrick/workspace_py/env/lib/python2.6/site-packages/coffin/template/loader.py", line 24, in get_template
    return env.get_template(template_name)
  File "/home/patrick/workspace_py/env/lib/python2.6/site-packages/jinja2/environment.py", line 719, in get_template
    return self._load_template(name, self.make_globals(globals))
  File "/home/patrick/workspace_py/env/lib/python2.6/site-packages/jinja2/environment.py", line 693, in _load_template
    template = self.loader.load(self, name, globals)
  File "/home/patrick/workspace_py/env/lib/python2.6/site-packages/jinja2/loaders.py", line 115, in 开发者_StackOverflow中文版load
    source, filename, uptodate = self.get_source(environment, name)
  File "/home/patrick/workspace_py/env/lib/python2.6/site-packages/jinja2/loaders.py", line 377, in get_source
    raise TemplateNotFound(template)
TemplateNotFound: 500.html

----------------------------------------------------------------------

Does anyone know how to fix ?

Patrick

Some times I found weird errors and quick connection resets using development server (like in your log). If your application is about http, REST and webservices you should use Apache or Gunicorn so you feel a more realistic enviroment while developing.