Append subelements from a sequence. *elements* is a sequence with zero or more elements.
(self, elements)
| 234 | self._children.append(subelement) |
| 235 | |
| 236 | def extend(self, elements): |
| 237 | """Append subelements from a sequence. |
| 238 | |
| 239 | *elements* is a sequence with zero or more elements. |
| 240 | |
| 241 | """ |
| 242 | for element in elements: |
| 243 | self._assert_is_element(element) |
| 244 | self._children.append(element) |
| 245 | |
| 246 | def insert(self, index, subelement): |
| 247 | """Insert *subelement* at position *index*.""" |