Is it possible to exclude fields from the model itself when exporting them? (instead of dict(exclude=..))

[arielb135]

Basically, i have the following model:

class MyCls(BaseModel):
    permissions: Permissions
    some_id: str = Field('')
    some_flag: bool = Field(False)

when exporting this module to dict / anything else - i want to exclude some_flag from the output.
I know it can be done through the export in the dict method - but this class is a subclass in a more complex model, and i don't want the user of the class to decide what to exclude.

Note - i'm using this flag for some inner calculations.

[PrettyWood]

Hello @arielb135
Currently it's not possible without overriding dict method (or any other workaround).
But I think support of private attributes or having a special value of dump alias (like dump_alias=None) to exclude fields would be two viable solutions.
Both solutions may be included in pydantic 1.7 if everything goes well.
WDYT ?

[daviskirk]

I think this might be a duplicate of #660 right?
The solution (I think ... when that's done) would look something like:

class MyCls(BaseModel):
    permissions: Permissions
    some_id: str = Field('')
    some_flag: bool = Field(False)

    class Config:
        fields = {
            'some_flag': {
                'exclude': ...,
            }
        }