Arcgis python arcgisscripting等模块可以导入但不能调用么？

import arcgisscripting
gp = arcgisscripting.create(9.3)
shp="E:\\kill\\road.shp"
fdlist=gp.ListFields(shp,"len*")#此行运行结束，直接卡死
for fd in fdlist:
fdnm=fd.Name
print fdnm
print "field find finished"