pydantic deprecation warnings

[jku]

There are pydantic deprecation warnings now that pydantic 2.x is out when running the test suite, see e.g. logs in https://github.com/sigstore/sigstore-python/actions/runs/6004069422/job/16283850154

Related note: I'm also a little confused by the version requirements:

• pyproject.toml sets pydantic >= 2,< 3
• install/requirements.txt sets pydantic==1.10.6

what is going on here?

Specific deprecations

@validator is deprecated

Example

sigstore/_internal/fulcio/client.py:107: PydanticDeprecatedSince20: Pydantic V1 style `@validator` validators are deprecated. 
You should migrate to Pydantic V2 style `@field_validator` validators, see the migration guide for more details. 
Deprecated in Pydantic V2.0 to be removed in V3.0. See Pydantic V2 Migration Guide at https://errors.pydantic.dev/2.3/migration/

parse_obj is deprecated

Example

/home/runner/work/sigstore-python/sigstore-python/sigstore/transparency.py:161: PydanticDeprecatedSince20: The `parse_obj` method is deprecated; use `model_validate` instead. 
Deprecated in Pydantic V2.0 to be removed in V3.0. See Pydantic V2 Migration Guide at https://errors.pydantic.dev/2.3/migration/

parse_raw is deprecated

Example

/home/runner/work/sigstore-python/sigstore-python/test/unit/internal/fulcio/test_client.py:98: PydanticDeprecatedSince20: The `parse_raw` method is deprecated; if your data is JSON use `model_validate_json`, otherwise load the data then use `model_validate` instead. 
Deprecated in Pydantic V2.0 to be removed in V3.0. See Pydantic V2 Migration Guide at https://errors.pydantic.dev/2.3/migration/

load_str_bytes is deprecated

Example

/home/runner/work/sigstore-python/sigstore-python/env/lib/python3.11/site-packages/pydantic/main.py:999: PydanticDeprecatedSince20: load_str_bytes is deprecated. 
Deprecated in Pydantic V2.0 to be removed in V3.0. See Pydantic V2 Migration Guide at https://errors.pydantic.dev/2.3/migration/

[woodruffw]

pyproject.toml sets pydantic >= 2,< 3
install/requirements.txt sets pydantic==1.10.6

This is probably because of the release candidate: #705 bumped pydantic to the 2.x series and I made a release candidate for it, but the fully locked dependencies under install/ only track the latest stable version (which is the latest 1.x release).

I thought I squashed most of those deprecations with #705, but it looks like I missed a few. I can see about resolving those later today (unless you'd like to do it) 🙂

[jku]

I can see about resolving those later today (unless you'd like to do it)

I can take a look tomorrow, no problem

[acascell]

Team, I am still seeing the following warning, would be worth to reopen this issue?

PydanticDeprecatedSince20: The `parse_obj` method is deprecated; use `model_validate` instead. Deprecated in Pydantic V2.0 to be removed in V3.0. See Pydantic V2 Migration Guide at https://errors.pydantic.dev/2.3/migration/
  warnings.warn('The `parse_obj` method is deprecated; use `model_validate` instead.', DeprecationWarning)

Here's the prject specifics:
pydantic 2.3.0 pydantic_core 2.6.3

[woodruffw]

Team, I am still seeing the following warning, would be worth to reopen this issue?

Can you confirm that you're running a copy of sigstore-python from the latest main? The changes in this PR have not been included in a release yet, so if you're running a released version the deprecation warnings will still appear.