v2.1

[seandstewart]

Reasoning

There were a few other things on the roadmap for v2.1, but the changeset has grown to a place where I'd like to get these released and punt the remaining work to the next feature release.

What's in the Box

Bugfixes

• Lazy reprs eval to False, so we should check for a None when deciding on the error message at Constraints validation failure.
• Optional fields for recursive types were not properly reflected when generating the JSON Schema.
• Fields marked with ... for default are no longer considered nullable when generating the JSON Schema, but are still optional.
• Objects are named after their type rather than their field when generating the JSON Schema (Schema generation: Name objects after their type rather the field nam… #130) (breaking change)
• Structured Tuples are not properly validated or deserialized (Unexpected behavior when validate typing.Tuple[str, int] #138)

Features

• Adds validation and deserialization for Literal types (Validation of Literal types #87)
• Adds support for Tagged Unions (Add Discriminator Support for Polymorphic Types (Unions) #72). See the caveats in (Add support for Tagged Unions (#72) #133)
• Adds typic.environ for typed get/set access of environment variables, and lazy evaluation of defaults for Settings, with clearer error messaging.
• Adds support for datetime.time and datetime.timedelta.
• Small optimizations for Object and Array validation.

[codecov]

Codecov Report

Merging #139 (76d26e3) into main (47a937f) will decrease coverage by 0.51%.
The diff coverage is 91.96%.

@@            Coverage Diff             @@
##             main     #139      +/-   ##
==========================================
- Coverage   93.81%   93.30%   -0.52%     
==========================================
  Files          36       37       +1     
  Lines        3866     4272     +406     
==========================================
+ Hits         3627     3986     +359     
- Misses        239      286      +47     

Flag	Coverage Δ
3.8	93.30% <91.96%> (-0.52%)	⬇️
unittests	93.30% <91.96%> (-0.52%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
typic/constraints/__init__.py	100.00% <ø> (ø)
typic/serde/binder.py	98.38% <ø> (ø)
typic/util.py	89.70% <75.80%> (-1.63%)	⬇️
typic/gen.py	89.58% <77.04%> (-8.40%)	⬇️
typic/serde/translator.py	97.52% <80.00%> (-0.77%)	⬇️
typic/env.py	80.95% <80.95%> (ø)
typic/constraints/common.py	93.18% <92.70%> (+0.35%)	⬆️
typic/constraints/factory.py	99.33% <95.23%> (-0.67%)	⬇️
typic/api.py	96.49% <95.45%> (-0.42%)	⬇️
typic/constraints/array.py	98.00% <96.77%> (-0.75%)	⬇️
... and 16 more

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