python 调用AO报错，该如何解决？

xiehaiyun

python 调用AO报错，该如何解决？请高手帮忙解决
>>> import comtypes
>>> from comtypes.client import GetModule
>>> sLibPath="C:/Program Files (x86)/ArcGIS/Desktop10.2/com/"
>>> GetModule(sLibPath+"esriSystem.olb")
# Generating comtypes.gen._5E1F7BC3_67C5_4AEE_8EC6_C4B73AAC42ED_0_10_2

Traceback (most recent call last):
  File "<pyshell#3>", line 1, in <module>
    GetModule(sLibPath+"esriSystem.olb")
  File "C:\Python27\ArcGIS10.2\lib\site-packages\comtypes\client\_generate.py", line 112, in GetModule
    mod = _CreateWrapper(tlib, pathname)
  File "C:\Python27\ArcGIS10.2\lib\site-packages\comtypes\client\_generate.py", line 188, in _CreateWrapper
    mod = _my_import(fullname)
  File "C:\Python27\ArcGIS10.2\lib\site-packages\comtypes\client\_generate.py", line 26, in _my_import
    return __import__(fullname, globals(), locals(), ['DUMMY'])
  File "C:\Python27\ArcGIS10.2\lib\site-packages\comtypes\gen\_5E1F7BC3_67C5_4AEE_8EC6_C4B73AAC42ED_0_10_2.py", line 4736, in <module>
    ( ['in'], POINTER(_midlSAFEARRAY(POINTER(BSTR))), 'pParameters' ),
  File "C:\Python27\ArcGIS10.2\lib\site-packages\comtypes\safearray.py", line 18, in _midlSAFEARRAY
    sa_type = _make_safearray_type(itemtype)
  File "C:\Python27\ArcGIS10.2\lib\site-packages\comtypes\safearray.py", line 52, in _make_safearray_type
    raise TypeError(itemtype)
TypeError: <class 'comtypes.errorinfo.LP_BSTR'>