fix: add eval_type_backport for Python 3.9 Pydantic compatibility

mivertowski · claude · mivertowski · commit 257ae1156670 · 2026-03-05T14:22:06.000+01:00
Pydantic evaluates type annotations at runtime, so `int | None` syntax
fails on Python 3.9. The eval_type_backport package provides runtime
support for PEP 604 union syntax on older Python versions.

Co-Authored-By: Claude Opus 4.6 &lt;noreply@anthropic.com&gt;
diff --git a/pyproject.toml b/pyproject.toml
@@ -27,6 +27,7 @@ classifiers = [
 dependencies = [
     "httpx>=0.25",
     "pydantic>=2.0",
+    "eval_type_backport>=0.1.0; python_version < '3.10'",
 ]
 
 [project.urls]

Original file line number	Diff line number	Diff line change
`@@ -27,6 +27,7 @@ classifiers = [`
`27`	`27`	`dependencies = [`
`28`	`28`	`"httpx>=0.25",`
`29`	`29`	`"pydantic>=2.0",`
	`30`	`+ "eval_type_backport>=0.1.0; python_version < '3.10'",`
`30`	`31`	`]`
`31`	`32`
`32`	`33`	`[project.urls]`