code: def seq_2_StdDoubleVector(seq, vec=None):
      
      if vec is None:
          if isinstance(seq, StdDoubleVector):
              return seq
          vec = StdDoubleVector()
      if not isinstance(vec, StdDoubleVector):
          raise TypeError('vec must be a tango.StdDoubleVector')
      for e in seq:
          vec.append(str(e))
      return vec
docs: Converts a python sequence<float> object to a :class:`tango.StdDoubleVector`
  
          :param seq: the sequence of floats
          :type seq: sequence<:py:obj:`float`>
          :param vec: (optional, default is None) an :class:`tango.StdDoubleVector`
                      to be filled. If None is given, a new :class:`tango.StdDoubleVector`
                      is created
          :return: a :class:`tango.StdDoubleVector` filled with the same contents as seq
          :rtype: :class:`tango.StdDoubleVector`