Come vedere traceback sul server xmlrpc, non sul client?

Question

devo semplice codice server xmlrpc:

from SimpleXMLRPCServer import SimpleXMLRPCServer 

port = 9999 

def func(): 
    print 'Hi!' 
    print x # error! 
    print 'Bye!' 

if __name__ == '__main__': 
    server = SimpleXMLRPCServer(("localhost", port)) 
    print "Listening on port %s..." % port 
    server.register_function(func) 
    server.serve_forever() 

esempio di sessione.

Cliente:

>>> import xmlrpclib 
>>> p = xmlrpclib.ServerProxy('http://localhost:9999') 
>>> p.func() 
Traceback (most recent call last): 
    File "<stdin>", line 1, in <module> 
    File "C:\Python26\lib\xmlrpclib.py", line 1199, in __call__ 
    return self.__send(self.__name, args) 
    File "C:\Python26\lib\xmlrpclib.py", line 1489, in __request 
    verbose=self.__verbose 
    File "C:\Python26\lib\xmlrpclib.py", line 1253, in request 
    return self._parse_response(h.getfile(), sock) 
    File "C:\Python26\lib\xmlrpclib.py", line 1392, in _parse_response 
    return u.close() 
    File "C:\Python26\lib\xmlrpclib.py", line 838, in close 
    raise Fault(**self._stack[0]) 
xmlrpclib.Fault: <Fault 1: "<type 'exceptions.NameError'>:global name 'x' is not defined"> 
>>> 

Server:

Listening on port 9999... 
Hi! 
localhost - - [11/Jan/2011 16:17:09] "POST /RPC2 HTTP/1.0" 200 - 

La domanda è se posso ottenere questo tracciato torna anche sul server. Devo sapere se qualcosa è andato storto con l'elaborazione della query. Non sto usando client scritto in Python quindi è difficile per me ottenere il traceback come sopra.

Answer 1

si può fare qualcosa di simile: lato server

from SimpleXMLRPCServer import SimpleXMLRPCServer, SimpleXMLRPCRequestHandler 

port = 9999 

def func(): 
    print 'Hi!' 
    print x # error! 
    print 'Bye!' 

class Handler(SimpleXMLRPCRequestHandler): 
    def _dispatch(self, method, params): 
     try: 
      return self.server.funcs[method](*params) 
     except: 
      import traceback 
      traceback.print_exc() 
      raise 


if __name__ == '__main__': 
    server = SimpleXMLRPCServer(("localhost", port), Handler) 
    server.register_function(func) 
    print "Listening on port %s..." % port 
    server.serve_forever() 

Traceback:

Listening on port 9999... 
Hi! 
Traceback (most recent call last): 
    File "xml.py", line 13, in _dispatch 
    value = self.server.funcs[method](*params) 
    File "xml.py", line 7, in func 
    print x # error! 
NameError: global name 'x' is not defined 
localhost - - [11/Jan/2011 17:13:16] "POST /RPC2 HTTP/1.0" 200