Question

有两个带有Fiona库中shapefile模式的字典，最终会打印出它们的差异，我还需要提供哪一行属于哪个字典：

from collections import OrderedDict
from pprint import pprint

>>> d1 = {'properties': OrderedDict([('KAEK', 'str:12'),
...               ('PROP_TYPE', 'str:4'),
...               ('ORI_TYPE', 'int:1'),
...               ('ORI_CODE', 'str:100'),
...               ('DEC_ID', 'str:254'),
...               ('ADDRESS', 'str:254'),
...               ('NUM', 'str:9'),
...               ('LEN', 'float:19.11'),
...               ('AREA', 'float:19.11')]),
...  'geometry': 'Polygon'}

>>> d1 = d1['properties']

>>> d2 = {'properties': OrderedDict([('OBJECTID_1', 'int:9'),
...               ('OBJECTID', 'int:9'),
...               ('FID_PERIVL', 'int:9'),
...               ('DESC_', 'str:254'),
...               ('PROP_TYPE', 'str:4'),
...               ('Shape_Leng', 'float:19.11'),
...               ('Shape_Le_1', 'float:19.11'),
...               ('Shape_Area', 'float:19.11'),
...               ('PARCEL_COD', 'str:254'),
...               ('KAEK', 'str:50'),
...               ('NUM', 'int:4'),
...               ('DEC_ID', 'int:4'),
...               ('ADDRESS', 'int:4'),
...               ('ORI_CODE', 'int:4'),
...               ('ORI_TYPE', 'int:4')]),
...  'geometry': 'Polygon'}

>>> d2 = d2['properties']

我希望结果能显示出哪个字典起源于最后一部分中列出的对称差异：查看注释以查看我打算做什么。

pprint(set.symmetric_difference(set(d1.items()), set(d2.items())))
{('ADDRESS', 'int:4'),#somehow inform that this belongs to d2 and so on...
 ('ADDRESS', 'str:254'),#d1
 ('AREA', 'float:19.11'),#d1
 ('DEC_ID', 'int:4'),#d2
 ('DEC_ID', 'str:254'),
 ('DESC_', 'str:254'),
 ('FID_PERIVL', 'int:9'),
 ('KAEK', 'str:12'),
 ('KAEK', 'str:50'),
 ('LEN', 'float:19.11'),
 ('NUM', 'int:4'),
 ('NUM', 'str:9'),
 ('OBJECTID', 'int:9'),
 ('OBJECTID_1', 'int:9'),
 ('ORI_CODE', 'int:4'),
 ('ORI_CODE', 'str:100'),
 ('ORI_TYPE', 'int:1'),
 ('ORI_TYPE', 'int:4'),
 ('PARCEL_COD', 'str:254'),
 ('Shape_Area', 'float:19.11'),
 ('Shape_Le_1', 'float:19.11'),
 ('Shape_Leng', 'float:19.11')}

简单地，按字典名称对它们进行分类。我该怎么办？

尝试过：

pprint(set(('d1', el) if el in d1.items() else ('d2', el) for el in d2.items()))但未正确返回：

{('d1', ('PROP_TYPE', 'str:4')),
 ('d2', ('ADDRESS', 'int:4')),
 ('d2', ('DEC_ID', 'int:4')),
 ('d2', ('DESC_', 'str:254')),
 ('d2', ('FID_PERIVL', 'int:9')),
 ('d2', ('KAEK', 'str:50')),
 ('d2', ('NUM', 'int:4')),
 ('d2', ('OBJECTID', 'int:9')),
 ('d2', ('OBJECTID_1', 'int:9')),
 ('d2', ('ORI_CODE', 'int:4')),
 ('d2', ('ORI_TYPE', 'int:4')),
 ('d2', ('PARCEL_COD', 'str:254')),
 ('d2', ('Shape_Area', 'float:19.11')),
 ('d2', ('Shape_Le_1', 'float:19.11')),
 ('d2', ('Shape_Leng', 'float:19.11'))}

正确的方法是像之前的最后一个一样显示它，但也要具有d1和d2信息。按此顺序：

 pprint(set.symmetric_difference(set(d1.items()), set(d2.items())))
    {('ADDRESS', 'int:4'),#somehow inform that this belongs to d2 and so on...
     ('ADDRESS', 'str:254'),#d1
     ('AREA', 'float:19.11'),#d1
     ('DEC_ID', 'int:4'),#d2
     ('DEC_ID', 'str:254'),
     ('DESC_', 'str:254'),
     ('FID_PERIVL', 'int:9'),
     ('KAEK', 'str:12'),
     ('KAEK', 'str:50'),
     ('LEN', 'float:19.11'),
     ('NUM', 'int:4'),
     ('NUM', 'str:9'),
     ('OBJECTID', 'int:9'),
     ('OBJECTID_1', 'int:9'),
     ('ORI_CODE', 'int:4'),
     ('ORI_CODE', 'str:100'),
     ('ORI_TYPE', 'int:1'),
     ('ORI_TYPE', 'int:4'),
     ('PARCEL_COD', 'str:254'),
     ('Shape_Area', 'float:19.11'),
     ('Shape_Le_1', 'float:19.11'),
     ('Shape_Leng', 'float:19.11')}

Answer 1

您可以执行以下操作：

d1_items = set(d1.items())
d2_items = set(d2.items())
result = sorted([(k, 'd1', v) for k, v in d1_items if (k, v) not in d2_items] +
                [(k, 'd2', v) for k, v in d2_items if (k, v) not in d1_items])
result = [(k, v, d) for k, d, v in result]
pprint(result)

输出：

[('ADDRESS', 'str:254', 'd1'),
 ('ADDRESS', 'int:4', 'd2'),
 ('AREA', 'float:19.11', 'd1'),
 ('DEC_ID', 'str:254', 'd1'),
 ('DEC_ID', 'int:4', 'd2'),
 ('DESC_', 'str:254', 'd2'),
 ('FID_PERIVL', 'int:9', 'd2'),
 ('KAEK', 'str:12', 'd1'),
 ('KAEK', 'str:50', 'd2'),
 ('LEN', 'float:19.11', 'd1'),
 ('NUM', 'str:9', 'd1'),
 ('NUM', 'int:4', 'd2'),
 ('OBJECTID', 'int:9', 'd2'),
 ('OBJECTID_1', 'int:9', 'd2'),
 ('ORI_CODE', 'str:100', 'd1'),
 ('ORI_CODE', 'int:4', 'd2'),
 ('ORI_TYPE', 'int:1', 'd1'),
 ('ORI_TYPE', 'int:4', 'd2'),
 ('PARCEL_COD', 'str:254', 'd2'),
 ('Shape_Area', 'float:19.11', 'd2'),
 ('Shape_Le_1', 'float:19.11', 'd2'),
 ('Shape_Leng', 'float:19.11', 'd2')]

显示每行是从哪本词典开始的？

1 个答案: