Re: Serializing pydantic enums

Most Python objects aren't serializable into JSON. Pydantic isn't
special in this sense.

What can you do about this? -- Well, if this is a one-of situation,
then, maybe just do it by hand?

If this is a recurring problem: json.dumps() takes a cls argument that
will be used to do the serialization. Extend json.JSONEncoder and
implement the encode() method for the encoder class you are passing. I
believe that the official docs have some information about this too.

On Tue, May 28, 2024 at 2:50 PM Larry Martell via Python-list
<python-list@python.org> wrote:

>
Just getting started with pydantic. I have this example code:
>
class FinishReason(Enum):
    stop = 'stop'
>
class Choice(BaseModel):
    finish_reason: FinishReason = Field(...)
>
>
But I cannot serialize this:
>
json.dumps(Choice(finish_reason=FinishReason.stop).dict())
*** TypeError: Object of type FinishReason is not JSON serializable
>
>
I get the object not the value:
>
(Pdb) Choice(finish_reason=FinishReason.stop)
Choice(finish_reason=<FinishReason.stop: 'stop'>)
>
>
Also tried it with .value, same result.
>
What am I missing here?
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