8.3.2.2.4.44. copy_attr_concatenateΒΆ
- dsp.copy_attr_concatenate(attr, value, replace)
If attr is an attribute of self and both self[attr] and value are lists, concatenate the two sequences, setting the result to self[attr]. If either self[attr] or value are non-sequences and replace is True or self[attr] is None, replace self[attr] with value. Otherwise, do nothing.