Dev #280
Merged
Dev #280
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Owner
dapper91
commented
Jul 13, 2025
dapper91
commented
- fix: xml_field_validator/serializer type annotations fixed. See Fix type annotations for xml_field_validator/serializer #277
There are 2 issues with the annotations: 1. Function types are contravariant rather than covariant in their argument types. This means that `Callable[[BaseXmlModel], Any]` is a subtype rather than a supertype of `Callable[[MyModel], Any]` and so using `Callable[[BaseXmlModel], Any]` as a lower bound of TypeVars doesn't work. Since Python doesn't support upper bounds on TypeVars, the solution is to push the TypeVar inside. To see the issue run mypy on the example from the documentation[1]. Currently, you get these errors: ``` t.py:13: error: Value of type variable "ValidatorFuncT" of function cannot be "Callable[[type[Plot], XmlElementReader, str], list[float]]" [type-var] t.py:21: error: Value of type variable "SerializerFuncT" of function cannot be "Callable[[Plot, XmlElementWriter, list[float], str], None]" [type-var] ``` This PR resolves these (however, validate_space_separated_list needs to be decorated with @classmethod). 2. A recent commit[2] has a typo where ValidatorFuncT was bound by SerializerFunc instead of ValidatorFunc. [1] https://pydantic-xml.readthedocs.io/en/latest/pages/misc.html#custom-xml-serialization [2] ec4b547
Fix type annotations for xml_field_validator/serializer
get_type_hints tests added.
|
Codecov ReportAll modified and coverable lines are covered by tests ✅
❗ Your organization needs to install the Codecov GitHub app to enable full functionality. Additional details and impacted files@@ Coverage Diff @@
## master #280 +/- ##
=======================================
Coverage 92.30% 92.31%
=======================================
Files 30 30
Lines 1728 1730 +2
=======================================
+ Hits 1595 1597 +2
Misses 133 133
Flags with carried forward coverage won't be shown. Click here to find out more. ☔ View full report in Codecov by Sentry. 🚀 New features to boost your workflow:
|
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.