|
1
|
|
|
# -*- coding: utf-8 -*- |
|
2
|
|
|
|
|
3
|
|
|
from six import string_types |
|
4
|
|
|
|
|
5
|
|
|
import copy |
|
6
|
|
|
import json |
|
7
|
|
|
|
|
8
|
|
|
|
|
9
|
|
|
class UtilityDict(dict): |
|
10
|
|
|
|
|
11
|
|
|
def __init__(self, *args, **kwargs): |
|
12
|
|
|
super(UtilityDict, self).__init__(*args, **kwargs) |
|
13
|
|
|
|
|
14
|
|
|
@classmethod |
|
15
|
|
|
def cast(cls, value): |
|
16
|
|
|
if isinstance(value, dict) and not isinstance(value, cls): |
|
17
|
|
|
return cls(value) |
|
18
|
|
|
else: |
|
19
|
|
|
return None |
|
20
|
|
|
|
|
21
|
|
|
def clean(self, strings=True, dicts=True, lists=True): |
|
22
|
|
|
keys = list(self.keys()) |
|
23
|
|
|
for key in keys: |
|
24
|
|
|
value = self.get(key, None) |
|
25
|
|
|
if not value: |
|
26
|
|
|
if value is None or \ |
|
27
|
|
|
strings and isinstance(value, string_types) or \ |
|
28
|
|
|
dicts and isinstance(value, dict) or \ |
|
29
|
|
|
lists and isinstance(value, (list, tuple, )): |
|
30
|
|
|
del self[key] |
|
31
|
|
|
|
|
32
|
|
|
def deepcopy(self): |
|
33
|
|
|
return copy.deepcopy(self) |
|
34
|
|
|
|
|
35
|
|
|
@staticmethod |
|
36
|
|
|
def dump(data): |
|
37
|
|
|
def encoder(obj): |
|
38
|
|
|
json_types = (bool, dict, float, int, list, tuple, ) + string_types |
|
39
|
|
|
if not isinstance(obj, json_types): |
|
40
|
|
|
return str(obj) |
|
41
|
|
|
return json.dumps(data, indent=4, sort_keys=True, default=encoder) |
|
42
|
|
|
|
|
43
|
|
|
def dump_items(self, key=None): |
|
44
|
|
|
return self.dump(self.get(key) if key else self) |
|
45
|
|
|
|
|
46
|
|
|
def filter(self, predicate): |
|
47
|
|
|
if not callable(predicate): |
|
48
|
|
|
raise ValueError('predicate argument must be a callable.') |
|
49
|
|
|
d = {} |
|
50
|
|
|
keys = self.keys() |
|
51
|
|
|
for key in keys: |
|
52
|
|
|
val = self.get(key, None) |
|
53
|
|
|
if predicate(key, val): |
|
54
|
|
|
d[key] = val |
|
55
|
|
|
return d |
|
56
|
|
|
|
|
57
|
|
|
def remove(self, keys): |
|
58
|
|
|
for key in keys: |
|
59
|
|
|
try: |
|
60
|
|
|
del self[key] |
|
61
|
|
|
except KeyError: |
|
62
|
|
|
continue |
|
63
|
|
|
# print('REMOVE', key) |
|
64
|
|
|
# self.pop(key, 1) |
|
65
|
|
|
|
|
66
|
|
|
def subset(self, keys): |
|
67
|
|
|
d = self.__class__() |
|
68
|
|
|
for key in keys: |
|
69
|
|
|
d[key] = self.get(key, None) |
|
70
|
|
|
return d |
|
71
|
|
|
|
fabiocaccamo /
python-benedict
