code: def _doc(from_func):
      '''copy doc from one function to another
      use as a decorator eg::
          
          @_doc(file.tell)
          def tell(..):
              ...
      '''
      def decorator(to_func):
          to_func.__doc__ = from_func.__doc__
          return to_func
      return decoratof _doc(from_func):
      '''copy doc from one function to another
      use as a decorator eg::
          
          @_doc(file.tell)
          def tell(..):
              ...
      '''
      def decorator(to_func):
          to_func.__doc__ = from_func.__doc__
          return to_func
      return decorator
docs: copy doc from one function to another
      use as a decorator eg::
          
          @_doc(file.tell)
          def tell(..):
              ...