Pydantic 2.0 Migration Plan

[alysivji]

• fhir.resources version: fhir-resources==7.0.1
• Python version: Python 3.11.3
• Operating System: `macOS Monterey 12.5.11

Description

Pydantic 2.0 was released on Friday. New version has a lot of underlying changes + some API changes -- see migration guide.

Is there a plan for fhir.resources to support the new version of Pydantic? Please let me know if you need a hand migrating. I use this library all the time and would love to contribute

What I Did

Created a fresh virtual environment with the following requirements file:

pydantic>=2
fhir.resources

Tried to run the Quickstart example in the README and got the following error:

from pydantic.class_validators import ROOT_VALIDATOR_CONFIG_KEY, root_validator
ImportError: cannot import name 'ROOT_VALIDATOR_CONFIG_KEY' from 'pydantic.class_validators'