def children(node):
"""
Gets list of *node*'s children
:param node: node in question
:return: list of children
"""
return snd(node)
def remove_from_node(node, child_to_remove):
"""
Removes the *child_to_remove* from a *node*
:param node: node in question
:param child_to_remove: child in question
:return: tuple with orphans and whether remove occurred
"""
children_names = list(History.children_names(node))
try:
child_to_remove_index = children_names.index(child_to_remove)
result = History.children(History.children(node)[child_to_remove_index]), True
del History.children(node)[child_to_remove_index]
return result
except ValueError:
children_call_result = [History.remove_from_node(child_node, child_to_remove)
for child_node in History.children(node)]
return reduce(lambda l, r: l if snd(l) else r,
children_call_result, ([], False))
