[英]python - parse nested dictionaries in list to store parent & child relationships in new list
我解析了一個mvn依賴樹以創建一個存儲信息的列表。 我希望能夠瀏覽此列表並將父+子組合保存在新列表中。 下面是解析的mvn樹的外觀摘錄(使用pprint),我在其中添加了帶有#的注釋以更明確地顯示關系。
[({'name': '"org.antlr antlr4"'}, #parent1
{'children': [({'name': '"org.antlr antlr4-runtime"'}, #child1-1
({'name': '"org.antlr antlr-runtime"'}, #child1-2
({'name': '"org.antlr ST4"'}, #child1-3
({'name': '"org.abego.treelayout org.abego.treelayout.core"'}, child1-4 & parent2
{'children': [({'name': '"org.hamcrest hamcrest-core"'}, #child2-1
({'name': '"org.slf4j slf4j-log4j12"'}, #parent3
{'children': [({'name': '"org.apache.commons commons-lang3"'})] #child3-1
這是我的雜亂嘗試:
def relate(tree):
for name, subtree in tree.items():
group, artifact = name.split(":")
g = "groupId:" + group
a = "artifactId:" + artifact
c = {"children": "children"}
family = []
parent = name.group + name.artifact
if subtree:
for c in subtree:
child = name.group + name.artifact
family.append((parent, child))
return family
有沒有辦法遍歷此過程並返回一個新列表,該列表返回如下所示的信息?
[[nameParent1, nameChild1-1],
[nameParent1, nameChild1-2],
[nameParent1, nameChild1-3],
[nameParent1, nameChild1-4],
[nameParent2, nameChild2-1],
[nameParent3, nameChild3-1]]
因此,對於此摘錄,
[[org.antlr antlr4, org.antlr antlr4-runtime],
[org.antlr antlr4, org.antlr antlr-runtime],
[org.antlr antlr4, org.antlr ST4],
[org.antlr antlr4, org.abego.treelayout org.abego.treelayout.core],
[org.abego.treelayout org.abego.treelayout.core, org.hamcrest hamcrest-core],
[org.slf4j slf4j-log4j12, org.apache.commons commons-lang3]]
我不確定如何在跟蹤關系的同時進行遍歷,它是否具有足夠的通用性來處理任何數量的帶孩子的孩子(請問是否需要澄清)。 提前致謝!
**#FINAL CODE -> based off of Michael Bianconi's answer**
def getParentsChildren(mvn: tuple) -> list:
result = []
parent = mvn[1]['oid']
children = mvn[5]['children']
for child in children:
result.append([parent, child[1]['oid']])
if len(child) >= 2: **# MODIFIED LINE**
result.extend(getParentsChildren(child))
return result
def getAll(mvn: list) -> list:
result = []
for m in mvn:
result.extend(getParentsChildren(m))
return result **# MODIFIED LINE**
整個過程是一個元組列表,因此循環遍歷。 元組中的第一項是父級,第二項是元組的數組(從技術上講,這是一堆嵌套在彼此內部的元組,但是我假設這是一個錯字,因為您從未關閉過它們)。
def getParentsChildren(mvn: tuple) -> list:
result = []
parent = mvn[0]['name']
children = mvn[1]['children']
for child in children:
result.append([parent, child[0]['name'])
if child.length == 2: # has children
result.extend(getParentsChildren(child))
return result
def getAll(mvn: list) -> list:
result = []
for m in mvn:
result.extend(getParentsChildren(m))
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