Flow does not allow the use of pydantic v1 SecretStr

[ConstantinoSchillebeeckx]

Bug summary

When I try to use from pydantic.v1 import SecretStr as an input arg type to my flow I"m getting:

pydantic.errors.PydanticUserError: The `__modify_schema__` method is not supported in Pydantic v2. Use `__get_pydantic_json_schema__` instead in class `SecretStr`.

For example:

from typing import Any, Optional

from prefect import get_run_logger

from prefect import flow
from pydantic.v1 import SecretStr # works with from pydantic import SecretStr


@flow
def foo(token: Optional[SecretStr] = None) -> Any:
    logger = get_run_logger()
    logger.info(token)


foo()

Note

This use-case was mentioned in https://github.com/PrefectHQ/prefect/pull/11656/files#r1458002878

Slack thread.

Version info (prefect version output)

Version:             2.20.6
API version:         0.8.4
Python version:      3.10.13
Git commit:          905bef9f
Built:               Thu, Sep 5, 2024 10:08 PM
OS/Arch:             darwin/arm64
Profile:             default
Server type:         cloud

Also
pydantic==2.9.2
pydantic_core==2.23.4

Additional context

No response

[zzstoatzz]

closed by #15608