python的httplib注意事项

httplib注意事项
1.使用httplib进行post请求时遇到错误：

Exception happened during processing of request from ('192.168.8.23', 58164)
Traceback (most recent call last):
File "C:\Python27\lib\SocketServer.py", line 284, in _handle_request_noblock
self.process_request(request, client_address)
File "C:\Python27\lib\SocketServer.py", line 310, in process_request
self.finish_request(request, client_address)
File "C:\Python27\lib\SocketServer.py", line 323, in finish_request
self.RequestHandlerClass(request, client_address, self)
File "d:\svn dir\pms\trunk\eggs\django-1.3.1-py2.7.egg\django\core\servers\bas
ehttp.py", line 570, in __init__
BaseHTTPRequestHandler.__init__(self, *args, **kwargs)
File "C:\Python27\lib\SocketServer.py", line 640, in __init__
self.finish()
File "C:\Python27\lib\SocketServer.py", line 693, in finish
self.wfile.flush()
File "C:\Python27\lib\socket.py", line 303, in flush
self._sock.sendall(view[write_offset:write_offset+buffer_size])
error: [Errno 10053]

错误原因是url的问题：

conn = httplib.HTTPConnection(ip,8080,timeout=20)
conn.request(method='post',url='/npm',body=simplejson.dumps(list(data)),headers = {'Content-Type':

'application/json'})
response = conn.getresponse()
conn.close()

这个url在我的应用里找不到，我的应用中的地址是/npm/,没有这个斜杠会导致请求重定向。post请求就报错了，get请求却不会受影响。