pydantic weekly project plan (Sydney Runkle) - August 12th, 2024

[sydney-runkle]

Background

Following on the heels of #10055, I'm going to continue with this public weekly plan approach.

The motivation behind tickets like these is to:

1. Communicate and coordinate with the community
2. Summarize and track weekly developments in pydantic
3. Help me / our team organize and prioritize issues

Last Week's Highlights

• Remove allOf JSON schema workarounds #10029
• Raise a better user error when failing to evaluate a forward reference #10030
• Experimental feature: opt-in fast build #10064

My plans for this week

This week, I'm going to wrap up the union serialization fixes discussed in #9688, and spend the remainder of my development time trying to figure out the best way forward with #10074. Next week, I'll pivot to readying for the v2.9 release 🚀. I'm also looking forward to doing lots of reviewing, both on pydantic and pydantic-core as we prep for this release.

I anticipate putting up a docs PR or two as always 📝.

Issues

• Notes on Union Serialization Fixes #9688
• Refactor how we handle parent namespaces for model construction #10074

PRs in progress

• Try each option in union serializer before inference pydantic-core#1398
• Fix float serialization behavior in strict mode pydantic-core#1400
• Fix ip schema serialization logic #10112
• For missing fields, we don't warn on exclude_, so don't warn on exclude pydantic-core#1403
• Fix ImportString special cases #10137
• Blacklist default globals to support exotic user code with __ prefixed annotations #10136
• Remove default module globals from types namespace #10123
• Performance boost: skip caching parent namespaces in most cases #10113
• Adding tagged union serializer 🚀  pydantic-core#1397
• Introduce exactness into Decimal validation logic pydantic-core#1405

Whenever the above two high prio issues are fixed, I can move to other work in the v2.9 milestone 🚀.

Review Queue

Lots to review this week - will try to front load providing this feedback.

pydantic

• Support complex number #9654
• Allow WithJsonSchema to inject $refs w/ http or https links #9863
• Fix Hashable not working with model_validate_json #10005
• Add initial architeture documentation #10077
• Docs update and warning frozen defined both #10082
• Improve pyright tests, refactor model decorators signatures #10092
• Fix mro of generic subclass  #10100
• fix model_dump json mode serialization issue #10102
• Improve documentation of the @computed_field decorator #10103
• Do not compute JSON Schema default when plain serializers are used with when_used set to 'json-unless-none' and the default value is None #10121

pydantic-core

• Fix float multiple_of validation for negative numbers pydantic-core#1373
• Expose wrapped iterator in SerializationIterator pydantic-core#1399
• Fix serialize_as_any with recursive ref pydantic-core#1359

Feedback

I'd love to get some feedback from the community / other contributors here. What else would be helpful for you to see on weekly reports like these?

Other sections I think could be valuable:

• high priority issues
• good first issues

[sydney-runkle]

See #9688 (comment) re union serialization fixes

[sydney-runkle]

I don't think it's really worth me repeating myself for my August 19th week issue, I'll primarily be working off of #10189 as my main guide this week!