portinterface.py 文件源码

def possibleErrors(self, data):
      if self.parent is None:
         raise ValueError('cannot call this method without valid parent object')
      if isinstance(data, str):
         data=[data]         
      if isinstance(data, collections.Iterable):
         del self.errorRefs[:]
         for name in data:
            found=False
            for error in self.parent.applicationErrors:
               if error.name == name:
                  self.errorRefs.append(error.ref)
                  found=True
                  break
            if found==False:
               raise ValueError('invalid error name: "%s"'%name)
      else:
         raise ValueError("input argument must be string or iterrable")