+33
-6
lines changedFilter options
+33
-6
lines changed Original file line number Diff line number Diff line change
@@ -1,27 +1,54 @@
1 +
"""
2 +
This module defines the main mechanism to extend the JSON format.
3 +
"""
4 + 1 5
__version__ = "0.1.1"
2 6 3 7
import json
4 8 5 9 6 10
class ExtendedEncoder(json.JSONEncoder):
7 -
def default(self, obj):
8 -
name = type(obj).__name__
11 +
"""JSON encoder defining the mechanism to encode arbitrary Python objects.
12 + 13 +
To encode an arbitrary object, you should subclass this encoder and define one
14 +
encode_X method for each type of object you want to be able to encode.
15 +
The method name should start with "encode_" and end with the type name.
16 +
The method accepts the given type of Python object and
17 +
should return a JSON-serialisable dictionary with the appropriate data,
18 +
which typically amounts to the data necessary to rebuild the object later on.
19 +
A related decoder must be implemented if decoding from JSON is required.
20 +
"""
21 + 22 +
def default(self, o):
23 +
name = type(o).__name__
9 24
try:
10 25
encoder = getattr(self, f"encode_{name}")
11 26
except AttributeError:
12 -
super().default(obj)
27 +
return super().default(o)
13 28
else:
14 -
encoded = encoder(obj)
29 +
encoded = encoder(o)
15 30
encoded["__extended_json_type__"] = name
16 31
return encoded
17 32 18 33 19 34
class ExtendedDecoder(json.JSONDecoder):
35 +
"""JSON decoder defining the mechanism to decode arbitrary JSON objects.
36 + 37 +
To decode an arbitrary object encoded by the related JSON encoder,
38 +
you should subclass this decoder and define one decode_X method for
39 +
each type of object you want to be able to decode.
40 +
The method name should start with "decode_" and end with the type name.
41 +
The method accepts a Python dictionary with string keys and should be able
42 +
to reconstruct the arbitrary object from the data provided in the dictionary.
43 +
"""
44 + 20 45
def __init__(self, **kwargs):
21 -
kwargs["object_hook"] = self.object_hook
46 +
kwargs["object_hook"] = self._object_hook
22 47
super().__init__(**kwargs)
23 48 24 -
def object_hook(self, obj):
49 +
def _object_hook(self, obj):
50 +
"""Default object hook that matches the encoder behaviour."""
51 + 25 52
try:
26 53
name = obj["__extended_json_type__"]
27 54
decoder = getattr(self, f"decode_{name}")
You can’t perform that action at this time.
RetroSearch is an open source project built by @garambo | Open a GitHub Issue
Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo
HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4