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我正在使用xmlrpclibIPython 交互式远程控制一些实验室设备。我喜欢 IPython 的自动完成功能，我也想通过xmlrpclib. 到目前为止，我设法通过以下方法完成了方法名称完成和方法帮助。

一个模拟电动舞台的小型测试服务器（这仅在您想测试我的客户端代码时才有用）：

import time  # needed for StageSimulation
from SimpleXMLRPCServer import SimpleXMLRPCServer, SimpleXMLRPCRequestHandler

class StageSimulation:
    """ A very simple simulation of a motorized linear stage """
    v = 5 # mm/s -- speed of stage
    goalPos = 0 # mm -- goal Position in mm
    goalTime = 0 # sec -- time when goal position should be reached


    def getPos(self):
        """ Return actual Position of stage """
        delta_t = self.goalTime - time.time()  # remaining moving time
        if delta_t <= 0 :  # stage is not moving
            return self.goalPos
        else:  # stage is moving
            return self.goalPos - self.v*delta_t

    def move(self, goalPos, v=5):
        """ Move stage to position ``goalPos`` with speed ``v`` """
        p0 = self.getPos()
        delta_p = goalPos - p0

        if v*delta_p < 0: # sign of v wrong
            v *= -1
        self.goalTime = time.time() + delta_p/v
        self.goalPos, self.v = goalPos, v


# Restrict to a particular path (see python Docs)
class RequestHandler(SimpleXMLRPCRequestHandler):
    rpc_paths = ('/RPC2',)


if __name__=='__main__':
    """ Instaniate Server """   
    host, hport = "localhost", 8787
    LogXMLRPCRequests = False
    server = SimpleXMLRPCServer((host, hport), allow_none=True,
                                requestHandler=RequestHandler)
    server.register_introspection_functions()

    StS = StageSimulation()
    server.register_instance(StS)
    try:
        server.serve_forever()
    except KeyboardInterrupt:
        print("Terminated server.")

我的客户实例化了一个对象，其中注册了所有已知方法：

import xmlrpclib


class XMLRPCClientObject(object):
    """XMLRPC Client which allows Tab completion on server instances

    This is achieved by reading all methods names from the server and 
    using them to generate local wrappers to them.
    """

    def __init__(self, url):
        """ Connect to server with ``url`` and generate methods """
        self.SP = xmlrpclib.ServerProxy(url)
        self.generateMethods()


    def generateMethods(self):
       """ Read names of server methods and use them for local wrappers """
       SP = self.SP
       for n in SP.system.listMethods():
           f = getattr(SP, n)
           f.__doc__  = SP.system.methodHelp(n)  # add doc string
           f.__name__ = n  # needed to make help() work
           setattr(self, n, f)  # register as local method 

if __name__ == "__main__":
    """ main function connects to Test Server """
    S = XMLRPCClientObject("http://localhost:8787")

除了方法名称完成之外，我还希望有参数名称完成，如S.move(goal<TAB>. 一种方法是利用xmlrpc.ServerProxy.system.methodSignature()，但system_methodSignature()不受SimpleXMLRPCServer. 有人知道如何检索服务器方法的签名吗？

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1 回答 1

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我倾向于认为python 检查模块可以提供帮助，它提供了可用于所需功能的基础知识

于 2014-05-15T15:14:02.537 回答