Python 3.2.2: Inexplicable fault in xmlrpc.client call - "argument of type 'int' is not iterable"

Question

Unlike previous questions like TypeError: argument of type 'int' is not iterable there doesn't seem to be an immediately obvious indexing problem in my case.

In the code below, testcfg.agents is a list of hostnames and/or IP addresses, and testcfg.port is the port which xmlrpc calls should use. The DSEvent class models events in Active Directory, and DSEvent.eventcommand is a list containing a command and its parameters (passed through xmlrpc calls to an agent, which executes it using the subprocess module.)

# Create a list of agents to process events from
agent_list = []
for a in testcfg.agents:
    agent_list.append(xmlrpc.client.ServerProxy("http://" + a + ':' + testcfg.port))

# Initial user creation:
for j in range(5):
    init_event = DSEvent(type = 'add', is_important = True)
    agent_eB = random.choice(agent_list)
    agent_eB.execute(init_event.eventcommand) # This line throws the fault described below!

The exact exception I'm getting is (with various tracebacks into the module stripped out):

xmlrpc.client.Fault: <Fault 1: "<class 'TypeError'>:argument of type 'int' is not iterable">

I can't understand where this fault might be coming from. While init_event.eventcommand is an iterable object (a list) I've passed and returned iterable objects via xmlrpc in other code without encountering this error. I've checked for accidental variable reuse, and I don't think that's the problem either. I'd really love some help here!

For reference, here's the full traceback for this error:

Traceback (most recent call last):
  File "C:\Users\Administrator\Downloads\randeventmaker\randeventmakerengine.py",
line 861, in <module>
    sproxy.execute(initializing_event.eventcommand)
  File "C:\Python32\lib\xmlrpc\client.py", line 1095, in __call__
    return self.__send(self.__name, args)
  File "C:\Python32\lib\xmlrpc\client.py", line 1423, in __request
    verbose=self.__verbose
  File "C:\Python32\lib\xmlrpc\client.py", line 1136, in request
    return self.single_request(host, handler, request_body, verbose)
  File "C:\Python32\lib\xmlrpc\client.py", line 1151, in single_request
    return self.parse_response(resp)
  File "C:\Python32\lib\xmlrpc\client.py", line 1323, in parse_response
    return u.close()
  File "C:\Python32\lib\xmlrpc\client.py", line 667, in close
    raise Fault(**self._stack[0])
xmlrpc.client.Fault: <Fault 1: "<class 'TypeError'>:argument of type 'int' is
not iterable">

I would think that the "various tracebacks into the module" would tell you what exactly it's trying to iterate over that's not iterable, and would thus be a good hint to answering the question.... — Brooks Moses
– Brooks Moses, Commented Jan 7, 2012 at 4:23

P Varga · Accepted Answer · 2012-01-07 15:59:25Z

0

You probably need to pass in an iterable, such as an integer-list...

answered Jan 7, 2012 at 15:59

P Varga

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1 Comment

Kudzu Over a year ago

That's just it, though: init_event.eventcommand is an iterable object. It's a list containing commands, parameters and options for the subprocess module to work on, e.g. ['dsadd', 'user', new_user_fdn, '-ln', 'Bob', ... ].

Kudzu · Accepted Answer · 2012-01-07 17:25:37Z

0

I think I've solved this, at least partially. Apparently remote functions only take a tuple of arguments. Changing

agent_eB.execute(init_event.eventcommand)

to

agent_eb.execute((init_event.eventcommand,))

seems to have fixed this particular error.

answered Jan 7, 2012 at 17:25

Kudzu

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