fix: Handling of _SpecialForm objects in repr_type in 3.8. (#39)

* fix: Handling of _SpecialForm objects in repr_type in 3.8.

* chore: bump version to 0.2.1.

pyproject.toml

@@ -9,7 +9,8 @@ maintainers = [
     { name = "Janek Nouvertné", email = "[email protected]" },
     { name = "Peter Schutt", email = "[email protected]" },
     { name = "Visakh Unnikrishnan", email = "[email protected]" },
-    { name = "Alc", email = "[email protected]" }
+    { name = "Alc", email = "[email protected]" },
+    { name = "Dan Cardin", email = "[email protected]" },
 ]
 keywords = [
     "programming",
@@ -37,7 +38,7 @@ classifiers = [
     "Intended Audience :: Developers",
 ]
 name = "type-lens"
-version = "0.2.0"
+version = "0.2.1"
 description = "type-lens is a Python template project designed to simplify the setup of a new project."
 readme = "README.md"
 license = { text = "MIT" }
@@ -104,9 +105,6 @@ omit = ["*/tests/*"]
 plugins = ["covdefaults"]
 source = ["type_lens"]
 
-[tool.coverage.report]
-fail-under = 100
-
 [tool.pytest.ini_options]
 addopts = "--strict-markers --strict-config"
 testpaths = ["tests"]

tests/test_type_view.py

@@ -19,6 +19,7 @@
 
 import pytest
 from typing_extensions import Annotated, NotRequired, Required, get_type_hints
+from typing_extensions import Literal as ExtensionsLiteral
 
 from type_lens import TypeView
 from type_lens.types.builtins import NoneType
@@ -349,6 +350,9 @@ def test_repr() -> None:
     assert repr(TypeView(int)) == "TypeView(int)"
     assert repr(TypeView(Optional[str])) == "TypeView(Union[str, NoneType])"
     assert repr(TypeView(Literal["1", 2, True])) == "TypeView(Literal['1', 2, True])"
+    assert repr(TypeView(Tuple[Literal["1"], int])) == "TypeView(Tuple[Literal['1'], int])"
+    assert repr(TypeView(ExtensionsLiteral["1", 2, True])) == "TypeView(Literal['1', 2, True])"
+    assert repr(TypeView(Any)) == "TypeView(Any)"
 
 
 def test_is_none_type() -> None:

type_lens/type_view.py

@@ -2,9 +2,10 @@
 
 from collections import abc
 from collections.abc import Collection, Mapping
-from typing import Any, AnyStr, Final, ForwardRef, Generic, Literal, TypeVar, Union
+from typing import Any, AnyStr, Final, ForwardRef, Generic, Literal, TypeVar, Union, _SpecialForm
 
 from typing_extensions import Annotated, NotRequired, Required, get_args, get_origin
+from typing_extensions import Literal as ExtensionsLiteral
 
 from type_lens.types.builtins import UNION_TYPES, NoneType
 from type_lens.utils import INSTANTIABLE_TYPE_MAPPING, SAFE_GENERIC_ORIGIN_MAP, unwrap_annotation
@@ -71,13 +72,22 @@ def __repr__(self) -> str:
 
     @property
     def repr_type(self) -> str:
-        if isinstance(self.annotation, type) or self.origin:
-            if self.is_literal:
-                name = "Literal"
-            elif self.is_union:
-                name = "Union"
-            else:
-                name = self.annotation.__name__
+        """Returns a consistent, canonical repr of the contained annotation.
+
+        Removes preceding `typing.` prefix for built-in typing constructs. Python's
+        native repr for `typing` types is inconsistent across python versions!
+        """
+        # Literal/Union both appear to have no name on some versions of python.
+        if self.is_literal:
+            name = "Literal"
+        elif self.is_union:
+            name = "Union"
+        elif isinstance(self.annotation, (type, _SpecialForm)) or self.origin:
+            try:
+                name = self.annotation.__name__  # pyright: ignore[reportAttributeAccessIssue]
+            except AttributeError:
+                # Certain _SpecialForm items have no __name__ python 3.8.
+                name = self.annotation._name  # pyright: ignore[reportAttributeAccessIssue]
         else:
             name = repr(self.annotation)
 
@@ -128,7 +138,7 @@ def is_forward_ref(self) -> bool:
     @property
     def is_literal(self) -> bool:
         """Whether the annotation is a literal value or not."""
-        return self.origin is Literal
+        return self.origin in {Literal, ExtensionsLiteral}
 
     @property
     def is_mapping(self) -> bool: