Re: Object of type set is not JSON serializable

[Martin Weissenboeck]

Maybe this could help?

https://stackoverflow.com/questions/8230315/how-to-json-serialize-sets

https://pynative.com/python-json-serialize-set/

Regards, Martin

Am Do., 3. Dez. 2020 um 08:55 Uhr schrieb Hari <ranje...@gmail.com>:

Any idea why I am getting this error?

I am just trying to run some functions while serving a request.

ERROR:root:Traceback (most recent call last):

  File "c:\users\USer\appdata\local\programs\python\python37\lib\site-packages\py4web\core.py", line 700, in wrapper

    [obj.on_success(200) for obj in fixtures]

  File "c:\users\USer\appdata\local\programs\python\python37\lib\site-packages\py4web\core.py", line 700, in <listcomp>

    [obj.on_success(200) for obj in fixtures]

  File "c:\users\USer\appdata\local\programs\python\python37\lib\site-packages\py4web\core.py", line 569, in on_success

    self.save()

  File "c:\users\USer\appdata\local\programs\python\python37\lib\site-packages\py4web\core.py", line 519, in save

    self.storage.set(cookie_data, json.dumps(self.local.data), self.expiration)

  File "c:\users\USer\appdata\local\programs\python\python37\lib\json\__init__.py", line 231, in dumps

    return _default_encoder.encode(obj)

  File "c:\users\USer\appdata\local\programs\python\python37\lib\json\encoder.py", line 199, in encode

    chunks = self.iterencode(o, _one_shot=True)

  File "c:\users\USer\appdata\local\programs\python\python37\lib\json\encoder.py", line 257, in iterencode

    return _iterencode(o, 0)

  File "c:\users\USer\appdata\local\programs\python\python37\lib\json\encoder.py", line 179, in default

    raise TypeError(f'Object of type {o.__class__.__name__} '

TypeError: Object of type set is not JSON serializable

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

  File "c:\users\USer\appdata\local\programs\python\python37\lib\site-packages\py4web\core.py", line 737, in wrapper

    ret = func(*func_args, **func_kwargs)

  File "c:\users\USer\appdata\local\programs\python\python37\lib\site-packages\py4web\core.py", line 706, in wrapper

    [obj.on_error() for obj in fixtures]

  File "c:\users\USer\appdata\local\programs\python\python37\lib\site-packages\py4web\core.py", line 706, in <listcomp>

    [obj.on_error() for obj in fixtures]

  File "c:\users\USer\appdata\local\programs\python\python37\lib\site-packages\py4web\core.py", line 565, in on_error

    self.save()

  File "c:\users\USer\appdata\local\programs\python\python37\lib\site-packages\py4web\core.py", line 519, in save

    self.storage.set(cookie_data, json.dumps(self.local.data), self.expiration)

  File "c:\users\USer\appdata\local\programs\python\python37\lib\json\__init__.py", line 231, in dumps

    return _default_encoder.encode(obj)

  File "c:\users\USer\appdata\local\programs\python\python37\lib\json\encoder.py", line 199, in encode

    chunks = self.iterencode(o, _one_shot=True)

  File "c:\users\USer\appdata\local\programs\python\python37\lib\json\encoder.py", line 257, in iterencode

    return _iterencode(o, 0)

  File "c:\users\USer\appdata\local\programs\python\python37\lib\json\encoder.py", line 179, in default

    raise TypeError(f'Object of type {o.__class__.__name__} '

TypeError: Object of type set is not JSON serializable

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