Package ptree :: Module elements :: Class _ParentedElement

classobj _ParentedElement

A specialized version of etree.ElementTree.Element that keeps track of a single parent pointer per element.

Each _ParentedElement may have at most one parent. In particular, subtrees may not be shared. Any attempt to reuse a single _ParentedElement as a child of more than one parent (or as multiple children of the same parent) will cause a ValueError exception to be raised.

_ParentedElements should never be used in the same tree as other Element implementation classes. Mixing Element implementations may result in incorrect parent pointers and in ValueError exceptions.

Instance Methods

[hide private]

__init__(self, tag, attrib)

source code

parent(self)

source code

_setparent(self, element)
Update child's parent pointer to point to self. source code

_delparent(self, element)
Remove self from child's parent pointer. source code

makeelement(self, tag, attrib)

source code

Inherited from _AbstractParentedElement: __delitem__, __delslice__, __repr__, __setitem__, __setslice__, append, extend, insert, pop, remove

Inherited from xml.etree.ElementTree._ElementInterface: __getitem__, __getslice__, __len__, clear, find, findall, findtext, get, getchildren, getiterator, items, keys, set