How to use iter_children_preorder method in avocado

Best Python code snippet using avocado_python Github


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...220 else:221 raise ValueError("Path %s does not exists in this tree\n%s"222 % (path, tree_view(self.root)))223 return node224 def iter_children_preorder(self):225 """ Iterate through children """226 queue = collections.deque()227 node = self228 while node is not None:229 yield node230 queue.extendleft(reversed(node.children))231 try:232 node = queue.popleft()233 except IndexError:234 node = None235 def iter_leaves(self):236 """ Iterate through leaf nodes """237 for node in self.iter_children_preorder():238 if node.is_leaf:239 yield node240 def get_leaves(self):241 """ Get list of leaf nodes """242 return list(self.iter_leaves())243 def detach(self):244 """ Detach this node from parent """245 if self.parent:246 self.parent.children.remove(self)247 self.parent = None248 return self249def path_parent(path):250 """251 From a given path, return its parent path.252 :param path: the node path as string.253 :return: the parent path as string.254 """255 parent = path.rpartition('/')[0]256 if not parent:257 return '/'258 return parent259def apply_filters(tree, filter_only=None, filter_out=None):260 """261 Apply a set of filters to the tree.262 The basic filtering is filter only, which includes nodes,263 and the filter out rules, that exclude nodes.264 Note that filter_out is stronger than filter_only, so if you filter out265 something, you could not bypass some nodes by using a filter_only rule.266 :param filter_only: the list of paths which will include nodes.267 :param filter_out: the list of paths which will exclude nodes.268 :return: the original tree minus the nodes filtered by the rules.269 """270 if filter_only is None:271 filter_only = []272 else:273 filter_only = [_.rstrip('/') for _ in filter_only if _]274 if filter_out is None:275 filter_out = []276 else:277 filter_out = [_.rstrip('/') for _ in filter_out if _]278 for node in tree.iter_children_preorder():279 keep_node = True280 for path in filter_only:281 if path == '':282 continue283 if node.path == path:284 keep_node = True285 break286 if node.parent and node.parent.path == path_parent(path):287 keep_node = False288 continue289 for path in filter_out:290 if path == '':291 continue292 if node.path == path:...

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