Daniel Ward added the comment:
Sure, so for example:
=========
import json
class ObjectCounter:
def __init__(self, name, count):
self.name = name
self.count = count
def __json__(self):
return '[{name}] {count}'.format(name=self.name, count=self.count)
object_counter = ObjectCounter('DC1', 3789)
my_json_string = json.dumps({'success': True, 'counter': object_counter})
============
In the above example, the value stored in my_json_string would be:
'{"success": true, "counter": "[DC1] 3789"}'
This is an untested and quick example, but I hope it explains what I'm aiming
to achieve. Without the __json__ method, the json.dumps call would raise an
exception along the lines of the below message, unless we create a new
JSONEncoder object and call json.dumps(..., cls=MyJSONEncoder), which becomes
difficult to manage and follow on larger projects.
TypeError: <ObjectCounter instance at XXX> is not JSON serializable
----------
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<http://bugs.python.org/issue27362>
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