>>> rapidjson.dumps({1}, iterable_mode=rapidjson.IM_ANY_ITERABLE)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: {1} is not JSON serializable>>> rapidjson.__version__
'1.8'
Given that documentation states "any iterable will be dumped as a JSON array," I would expect a set object to serialize to an array.
Note, it does appear that creating an iterator object from the set will successfully serialize:
>>> rapidjson.dumps(iter({1}), iterable_mode=rapidjson.IM_ANY_ITERABLE)
'[1]'
Given that documentation states "any iterable will be dumped as a JSON array," I would expect a set object to serialize to an array.
Note, it does appear that creating an iterator object from the set will successfully serialize: