8.3.2.2.4.43. copy_attr_coerceΒΆ
- dsp.copy_attr_coerce(attr, value, replace)
If attr is an attribute of self and either self[attr] or value is a list, convert all non-sequence values to a sequence of 1 element and then concatenate the two sequence, setting the result to self[attr]. If both self[attr] and value are non-sequences and replace is True or self[attr] is None, replace self[attr] with value. Otherwise, do nothing.