Mass Deface () function. __all__ = ["NodeList", "EmptyNodeList", "StringTypes", "defproperty"] import xml.dom try: unicode except NameError: StringTypes = type(''), else: StringTypes = type(''), type(unicode('')) class NodeList(list): __slots__ = () def item(self, index): if 0 <= index < len(self): return self[index] def _get_length(self): return len(self) def _set_length(self, value): raise xml.dom.NoModificationAllowedErr( "attempt to modify read-only attribute 'length'") length = property(_get_length, _set_length, doc="The number of nodes in the NodeList.") def __getstate__(self): return list(self) def __setstate__(self, state): self[:] = state class EmptyNodeList(tuple): __slots__ = () def __add__(self, other): NL = NodeList() NL.extend(other) return NL def __radd__(self, other): NL = NodeList() NL.extend(other) return NL def item(self, index): return None def _get_length(self): return 0 def _set_length(self, value): raise xml.dom.NoModificationAllowedErr( "attempt to modify read-only attribute 'length'") length = property(_get_length, _set_length, doc="The number of nodes in the NodeList.") def defproperty(klass, name, doc): get = getattr(klass, ("_get_" + name)).im_func def set(self, value, name=name): raise xml.dom.NoModificationAllowedErr( "attempt to modify read-only attribute " + repr(name)) assert not hasattr(klass, "_set_" + name), \ "expected not to find _set_" + name prop = property(get, set, doc=doc) setattr(klass, name, prop)