interactive mode in python with ctypes???

[digitnctu at gmail.com]

Dear all:

     I am coming with problem, to apply ctypes under interactive mode
in python.

     libdll.dll is a third-party library. The below code segment will
run well under the batch mode(ie. python test.py 11060)
     but when I type sequencially it doesn't work as usual.  Can any
give me a hand??

    # file test.py begin
  from ctypes import *
  lib = CDLL("libdll.dll")
  def evCb(ev, clData, caData):
      print "event: ", ev,"=>" , string_at(caData)

  def run(port):
      libinf = lib.libCreate(0)
      lib.libConnect(libinf,port,0,0)
      evfptr = CFUNCTYPE(None,c_char_p, c_void_p,c_void_p)
      lib.libCltAddEventCallback(libinf,"AllEvents",evfptr(evCb),0)
      result = c_char_p()
      libbuf = raw_input("lib>")
      while libbuf != "quit":
          lib.libCallCommand(libinf,libbuf,0,pointer(result))
          print "result: ",result.value
          if libbuf == "Exit":
              break
          libbuf = raw_input("lib>")
      lib.libDestroy(libinf)
    if __name__ == "__main__":
      import sys,string
      run(string.atoi(sys.argv[1]))
      # file test.py end

     I type in interactive mode of python as below:

     from ctypes import *
     lib = CDLL("libdll.dll")
     def evCb(ev,clData,caData):
         print "event: ", ev,"=>" , string_at(caData)
     libinf = lib.libCreate(0)
     lib.libConnect(libinf, 11060, 0,0)
    evfptr = CFUNCTYPE(None,c_char_p, c_void_p,c_void_p)
    lib.libCltAddEventCallback(libinf,"AllEvents",evfptr(evCb),0)
    result = c_char_p()
    lib.libCallCommand(libinf,"somecmd",0,pointer(result))
    lib.libDestroy(libinf)