OpenOPC.py 文件源码

def type_check(tags):
   """Perform a type check on a list of tags"""

   if type(tags) in (types.ListType, types.TupleType):
      single = False
   elif tags == None:
      tags = []
      single = False
   else:
      tags = [tags]
      single = True

   if len([t for t in tags if type(t) not in types.StringTypes]) == 0:
      valid = True
   else:
      valid = False

   return tags, single, valid