我有以下要根据依赖关系排序的对象列表。首先,将没有依赖关系的对象首先添加到列表中,然后对添加的第一个批次具有依赖关系的批处理,依此类推,直到从列表中删除所有项目为止。
pp = [
{"name": 'pipeline13', "deps": 'pipeline11' },
{"name": 'pipeline1', "deps": 'pipeline4' },
{"name": 'pipeline4'},
{"name": 'pipeline2', "deps": 'pipeline4'},
{"name": 'pipeline3'},
{"name": 'pipeline5'},
{"name": 'pipeline6', "deps": 'pipeline2'},
{"name": 'pipeline7'},
{"name": 'pipeline8', "deps": 'pipeline2'},
{"name": 'pipeline9', "deps": 'pipeline3'},
{"name": 'pipeline10', "deps": 'pipeline1' },
{"name": 'pipeline11', "deps": 'pipeline10' }
]
当前,我有下面的代码可以工作,但是它不是可扩展的,也不是非常Pythonic。
output = []
output_stage_1 = []
output_stage_2 = []
output_stage_3 = []
output_stage_4 = []
output_stage_5 = []
while pp:
for p in pp:
if not p.get('deps'):
output.append(p)
pp.remove(p)
if p.get('deps') in [i.get('name') for i in output]:
output_stage_1.append(p)
pp.remove(p)
if p.get('deps') in [i.get('name') for i in output_stage_1]:
output_stage_2.append(p)
pp.remove(p)
if p.get('deps') in [i.get('name') for i in output_stage_2]:
output_stage_3.append(p)
pp.remove(p)
if p.get('deps') in [i.get('name') for i in output_stage_3]:
output_stage_4.append(p)
pp.remove(p)
if p.get('deps') in [i.get('name') for i in output_stage_4]:
output_stage_5.append(p)
pp.remove(p)
print(output + output_stage_1 + output_stage_2 + output_stage_3 + output_stage_4 + output_stage_5)
答案 0 :(得分:4)
答案 1 :(得分:1)
您可以这样做:
newMessage.setMessageData({
[winnerId]: {
"status": "win",
"choice": playerData[winnerId]["currentChoice"],
"newScore": playerData[winnerId]["score"]
},
[loserId]: {
"status": "lost",
"choice": playerData[loserId]["currentChoice"],
"newScore": playerData[loserId]["score"]
}
});
请注意,我并未对其进行优化,因此在处理大型数据集时可能会有点慢。
[编辑]这是一个优化的版本:
ordered = [ item["name"] for item in pp if "deps" not in item ]
while len(ordered) < len(pp):
for item in pp:
if "deps" not in item : continue
if item["name"] not in ordered and item["deps"] in ordered:
ordered.append(item["name"])