gistfile1.txt

In [1]: b = object()

In [2]: import json

In [3]: json.dumps(b)
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-3-8c425ddada75> in <module>()
----> 1 json.dumps(b)

/var/lib/conda/envs/nextdoor3/lib/python3.6/json/__init__.py in dumps(obj, skipkeys, ensure_ascii, check_circular, allow_nan, cls, indent, separators, default, sort_keys, **kw)
    229         cls is None and indent is None and separators is None and
    230         default is None and not sort_keys and not kw):
--> 231         return _default_encoder.encode(obj)
    232     if cls is None:
    233         cls = JSONEncoder

/var/lib/conda/envs/nextdoor3/lib/python3.6/json/encoder.py in encode(self, o)
    197         # exceptions aren't as detailed.  The list call should be roughly
    198         # equivalent to the PySequence_Fast that ''.join() would do.
--> 199         chunks = self.iterencode(o, _one_shot=True)
    200         if not isinstance(chunks, (list, tuple)):
    201             chunks = list(chunks)

/var/lib/conda/envs/nextdoor3/lib/python3.6/json/encoder.py in iterencode(self, o, _one_shot)
    255                 self.key_separator, self.item_separator, self.sort_keys,
    256                 self.skipkeys, _one_shot)
--> 257         return _iterencode(o, 0)
    258
    259 def _make_iterencode(markers, _default, _encoder, _indent, _floatstr,

/var/lib/conda/envs/nextdoor3/lib/python3.6/json/encoder.py in default(self, o)
    178         """
    179         raise TypeError("Object of type '%s' is not JSON serializable" %
--> 180                         o.__class__.__name__)
    181
    182     def encode(self, o):

TypeError: Object of type 'object' is not JSON serializable

In [4]: