我编写了一个脚本（在堆栈溢出的帮助下）来区分两个json词典，找出丢失，更改和添加的项目。
我目前有以下内容 -
import json
from pprint import pprint
def new_keys(d1, d2, result={}):
for key, d1_val in d1.iteritems():
if key not in d2:
result[key] = d1_val
else:
if isinstance(d1_val, dict) and isinstance(d2[key], dict):
# Don't pass result.
new_result = {}
new_keys(d1[key], d2[key], new_result)
# If new_result is not empty
if new_result:
result[key] = new_result
else:
if d1_val != d2[key]:
result[key] = d2[key]
for key, d2_val in d2.iteritems():
if key not in d1:
result[key] = d2_val
return result
with open("before.json") as data_file:
before = json.loads(data_file.read())
with open("after.json") as data_file:
after = json.loads(data_file.read())
pprint(new_keys(before,after))
我能够添加流行语＆＃39;丢失，更改并添加＆＃39;密钥，但不嵌套。
例如，我可以得到以下输出：
{u'vrfs': {u'default': {u'routes': {('added', u'3.3.3.3/32'): {u'directlyConnected': True,
u'hardwareProgrammed': True,
u'kernelProgrammed': True,
u'routeAction': u'drop',
u'routeType': u'static',
u'vias': []},
('lost', u'1.1.1.1/32'): {u'directlyConnected': True,
u'hardwareProgrammed': True,
u'kernelProgrammed': True,
u'routeAction': u'drop',
u'routeType': u'static',
u'vias': []},
('lost', u'5.5.5.0/24'): {u'directlyConnected': False,
u'hardwareProgrammed': True,
u'kernelProgrammed': True,
u'metric': 0,
u'preference': 200,
u'routeAction': u'forward',
u'routeType': u'eBGP',
u'vias': [{u'interface': u'Ethernet3',
u'nexthopAddr': u'192.168.1.10'}]},
u'2.2.2.2/32': {('changed', u'routeAction'): u'forward',
('changed', u'vias'): [{u'interface': u'Ethernet4'}]}}}}}
我想看到的内容：
{u'vrfs': {u'default': {u'routes': {'added': {
u'3.3.3.3/32'): {u'directlyConnected': True,
u'hardwareProgrammed': True,
u'kernelProgrammed': True,
u'routeAction': u'drop',
u'routeType': u'static',
u'vias': []},
'lost': {
u'1.1.1.1/32'): {u'directlyConnected': True,
u'hardwareProgrammed': True,
u'kernelProgrammed': True,
u'routeAction': u'drop',
u'routeType': u'static',
u'vias': []},
u'5.5.5.0/24'): {u'directlyConnected': False,
u'hardwareProgrammed': True,
u'kernelProgrammed': True,
u'metric': 0,
u'preference': 200,
u'routeAction': u'forward',
u'routeType': u'eBGP',
u'vias': [{u'interface': u'Ethernet3',
u'nexthopAddr': u'192.168.1.10'}]},
'changed': {
u'2.2.2.2/32': {u'routeAction': u'forward',
u'vias': [{u'interface': u'Ethernet4'}]}}}}}
在使用原始json中的变量键时，我对如何管理静态字典键（丢失，添加，更改）感到困惑。
感谢任何帮助！
编辑：我已经离得更近了！但是我的代码并没有考虑到所有情况。新代码 -
import json
from pprint import pprint
def new_keys(d1, d2, result={}):
for key, d1_val in d1.iteritems():
if key not in d2:
result['Lost'] = {}
result['Lost'][key] = d1_val
else:
if isinstance(d1_val, dict) and isinstance(d2[key], dict):
# Don't pass result.
new_result = {}
new_keys(d1[key], d2[key],new_result)
# If new_result is not empty
if new_result:
result[key] = new_result
else:
if d1_val != d2[key]:
result['Changed'] = {}
result['Changed'][key] = d2[key]
for key, d2_val in d2.iteritems():
if key not in d1:
result['New'] = {}
result['New'][key] = d2_val
return result
with open("before.json") as data_file:
before = json.loads(data_file.read())
with open("after.json") as data_file:
after = json.loads(data_file.read())
pprint(new_keys(before,after))
新输出 - 请注意，它只会看到第一个更改...我相信它是因为我将字典覆盖为空字符...但是如何初始化它？
{u'vrfs': {u'default': {u'routes': {u'2.2.2.2/32': {'Changed': {u'vias': [{u'interface': u'Ethernet4'}]}},
'Lost': {u'1.1.1.1/32': {u'directlyConnected': True,
u'hardwareProgrammed': True,
u'kernelProgrammed': True,
u'routeAction': u'drop',
u'routeType': u'static',
u'vias': []}},
'New': {u'3.3.3.3/32': {u'directlyConnected': True,
u'hardwareProgrammed': True,
u'kernelProgrammed': True,
u'routeAction': u'drop',
u'routeType': u'static',
u'vias': []}}}}}}
答案 0 :(得分：0)
想出来 -
import json
from pprint import pprint
def new_keys(d1, d2, result={}):
for key, d1_val in d1.iteritems():
if key not in d2:
if not result.has_key('lost'):
result['lost'] = {}
result['lost'][key] = d1_val
else:
result['lost'][key] = d1_val
else:
if isinstance(d1_val, dict) and isinstance(d2[key], dict):
# Don't pass result.
new_result = {}
new_keys(d1[key], d2[key],new_result)
# If new_result is not empty
if new_result:
result[key] = new_result
else:
if d1_val != d2[key]:
if not result.has_key('added'):
result['changed'] = {}
result['changed'][key] = d2[key]
else:
result['changed'][key] = d2[key]
for key, d2_val in d2.iteritems():
if key not in d1:
if not result.has_key('added'):
result['added'] = {}
result['added'][key] = d2_val
else:
result['added'][key] = d2_val
return result
with open("before.json") as data_file:
before = json.loads(data_file.read())
with open("after.json") as data_file:
after = json.loads(data_file.read())
pprint(new_keys(before,after))