simple_json 1.1

JSONEncoder

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

Supports the following objects and types by default:

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

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


Methods

f __init__(self, skipkeys=False, ensure_ascii=True, check_circular=True, allow_nan=True) ...

Constructor for JSONEncoder, with sensible defaults.

If skipkeys is False, then it is a TypeError to attempt encoding of keys that are not str, int, long, float or None. If skipkeys is True, such items are simply skipped.

If ensure_ascii is True, the output is guaranteed to be str objects with all incoming unicode characters escaped. If ensure_ascii is false, the output will be unicode object.

If check_circular is True, then lists, dicts, and custom encoded objects will be checked for circular references during encoding to prevent an infinite recursion (which would cause an OverflowError). Otherwise, no such check takes place.

If allow_nan is True, then NaN, Infinity, and -Infinity will be encoded as such. This behavior is not JSON specification compliant, but is consistent with most JavaScript based encoders and decoders. Otherwise, it will be a ValueError to encode such floats.

See the source for more information.