我有以下字典
d1 = {
"Completely Agree": {
"child": {
"Male": {
"child": {
"Greater than 54": {
"child": {},
"value": 4,
"label": "Greater than 54"
},
"Between 35 to 39": {
"child": {},
"value": 1,
"label": "Between 35 to 39"
}
},
"value": 5,
"label": "Male"
}
},
"value": 5,
"label": "Completely Agree"
},
"Somewhat Agree": {
"child": {
"Male": {
"child": {
"Greater than 54": {
"child": {},
"value": 1,
"label": "Greater than 54"
},
"Between 45 to 49": {
"child": {},
"value": 2,
"label": "Between 45 to 49"
},
"Between 25 to 29": {
"child": {},
"value": 1,
"label": "Between 25 to 29"
},
"Between 35 to 39": {
"child": {},
"value": 1,
"label": "Between 35 to 39"
},
"Between 50 to 54": {
"child": {},
"value": 3,
"label": "Between 50 to 54"
},
"Between 40 to 44": {
"child": {},
"value": 1,
"label": "Between 40 to 44"
}
},
"value": 9,
"label": "Male"
},
"Female": {
"child": {
"Between 25 to 29": {
"child": {},
"value": 2,
"label": "Between 25 to 29"
},
"Between 30 to 34": {
"child": {},
"value": 1,
"label": "Between 30 to 34"
},
"Greater than 54": {
"child": {},
"value": 1,
"label": "Greater than 54"
}
},
"value": 4,
"label": "Female"
}
},
"value": 13,
"label": "Somewhat Agree"
},
"Neither Agree nor Disagree": {
"child": {
"Male": {
"child": {
"Between 25 to 29": {
"child": {},
"value": 1,
"label": "Between 25 to 29"
},
"Between 35 to 39": {
"child": {},
"value": 1,
"label": "Between 35 to 39"
},
"Between 30 to 34": {
"child": {},
"value": 1,
"label": "Between 30 to 34"
},
"Between 45 to 49": {
"child": {},
"value": 1,
"label": "Between 45 to 49"
},
"Between 50 to 54": {
"child": {},
"value": 1,
"label": "Between 50 to 54"
}
},
"value": 5,
"label": "Male"
},
"Female": {
"child": {
"Less than 25": {
"child": {},
"value": 1,
"label": "Less than 25"
}
},
"value": 1,
"label": "Female"
}
},
"value": 6,
"label": "Neither Agree nor Disagree"
}
我想插入另一个键，让它在子级为空字典{}的同一级别说'data_recs'。所以结果应该是
d1 = {
"Completely Agree": {
"child": {
"Male": {
"child": {
"Greater than 54": {
"child": {},
"value": 4,
"label": "Greater than 54",
"data_recs": [1,2,3,4]
},
"Between 35 to 39": {
"child": {},
"value": 1,
"label": "Between 35 to 39",
"data_recs": [1,2,3,4]
}
},
"value": 5,
"label": "Male"
}
},
"value": 5,
"label": "Completely Agree"
},
"Somewhat Agree": {
"child": {
"Male": {
"child": {
"Greater than 54": {
"child": {},
"value": 1,
"label": "Greater than 54",
"data_recs": [1,2,3,4]
},
"Between 45 to 49": {
"child": {},
"value": 2,
"label": "Between 45 to 49"
},
"Between 25 to 29": {
"child": {},
"value": 1,
"label": "Between 25 to 29",
"data_recs": [1,2,3,4]
},
"Between 35 to 39": {
"child": {},
"value": 1,
"label": "Between 35 to 39",
"data_recs": [1,2,3,4]
},
"Between 50 to 54": {
"child": {},
"value": 3,
"label": "Between 50 to 54",
"data_recs": [1,2,3,4]
},
"Between 40 to 44": {
"child": {},
"value": 1,
"label": "Between 40 to 44",
"data_recs": [1,2,3,4]
}
},
"value": 9,
"label": "Male"
},
"Female": {
"child": {
"Between 25 to 29": {
"child": {},
"value": 2,
"label": "Between 25 to 29",
"data_recs": [1,2,3,4]
},
"Between 30 to 34": {
"child": {},
"value": 1,
"label": "Between 30 to 34",
"data_recs": [1,2,3,4]
},
"Greater than 54": {
"child": {},
"value": 1,
"label": "Greater than 54",
"data_recs": [1,2,3,4]
}
},
"value": 4,
"label": "Female"
}
},
"value": 13,
"label": "Somewhat Agree"
}
字典可以具有n个层次。我已经编写了以下代码来实现此目的，但是我想这里缺少一些东西。
def parse_master_dict(data, recs_map):
for k,v in data.items():
print k, v
if v.get('child', None):
child = v['child']
if not child:
print "here", k
v['data_recs'] = recs_map.get(k, [])
else:
#if child can have further children
parse_master_dict(child, recs_map)
请告知。
答案 0 :(得分：2)
您的if v.get('child', None):语句阻止您在子字典为空时继续更新字典，因为条件将被评估为False。删除if语句，您的代码应该可以运行：
def parse_master_dict(data, recs_map):
for k,v in data.items():
child = v['child']
if not child:
v['data_recs'] = recs_map.get(k, [])
else:
parse_master_dict(child, recs_map)