ethos_penalps.utilities.own_object_json_encoding_decoding

`ethos_penalps.utilities.own_object_json_encoding_decoding`#

Module Contents#

Classes#

`ExtendedEncoder`	Extensible JSON <https://json.org> encoder for Python data structures.
`ExtendedDecoder`	Simple JSON <https://json.org> decoder
`MyEncoder`	Extensible JSON <https://json.org> encoder for Python data structures.
`MyDecoder`	Simple JSON <https://json.org> decoder

class ethos_penalps.utilities.own_object_json_encoding_decoding.ExtendedEncoder(*, skipkeys=False, ensure_ascii=True, check_circular=True, allow_nan=True, sort_keys=False, indent=None, separators=None, default=None)#

Bases: json.JSONEncoder

Extensible JSON <https://json.org> encoder for Python data structures.

Supports the following objects and types by default:

Python	JSON
dict	object
list, tuple	array
str	string
int, float	number
True	true
False	false
None	null

To extend this to recognize other objects, subclass and implement a .default() method with another method that returns a serializable object for o if possible, otherwise it should call the superclass implementation (to raise TypeError).

default(obj)#

Implement this method in a subclass such that it returns a serializable object for o, or calls the base implementation (to raise a TypeError).

For example, to support arbitrary iterators, you could implement default like this:

def default(self, o):
    try:
        iterable = iter(o)
    except TypeError:
        pass
    else:
        return list(iterable)
    # Let the base class default method raise the TypeError
    return JSONEncoder.default(self, o)

class ethos_penalps.utilities.own_object_json_encoding_decoding.ExtendedDecoder(**kwargs)#

Bases: json.JSONDecoder

Simple JSON <https://json.org> decoder

Performs the following translations in decoding by default:

JSON	Python
object	dict
array	list
string	str
number (int)	int
number (real)	float
true	True
false	False
null	None

It also understands NaN, Infinity, and -Infinity as their corresponding float values, which is outside the JSON spec.

object_hook(obj)#

class ethos_penalps.utilities.own_object_json_encoding_decoding.MyEncoder(*, skipkeys=False, ensure_ascii=True, check_circular=True, allow_nan=True, sort_keys=False, indent=None, separators=None, default=None)#

Bases: ExtendedEncoder