Drop support for 3.8, which is near EOL.

.github/workflows/ci.yml

@@ -82,7 +82,6 @@ jobs:
         uses: actions/setup-python@v5
         with:
           python-version: |
-            3.8
             3.9
             3.10
             3.11

CHANGELOG.rst

@@ -1,3 +1,8 @@
+v4.24.0
+=======
+
+* Support for Python 3.8 has been dropped, as it is nearing end-of-life.
+
 v4.23.0
 =======
 

jsonschema/_format.py

@@ -13,9 +13,7 @@
 _FormatCheckCallable = typing.Callable[[object], bool]
 #: A format checker callable.
 _F = typing.TypeVar("_F", bound=_FormatCheckCallable)
-_RaisesType = typing.Union[
-    typing.Type[Exception], typing.Tuple[typing.Type[Exception], ...],
-]
+_RaisesType = typing.Union[type[Exception], tuple[type[Exception], ...]]
 
 _RE_DATE = re.compile(r"^\d{4}-\d{2}-\d{2}$", re.ASCII)
 

jsonschema/_types.py

@@ -1,13 +1,17 @@
 from __future__ import annotations
 
-from typing import Any, Callable, Mapping
+from typing import TYPE_CHECKING
 import numbers
 
 from attrs import evolve, field, frozen
 from rpds import HashTrieMap
 
 from jsonschema.exceptions import UndefinedTypeCheck
 
+if TYPE_CHECKING:
+    from collections.abc import Mapping
+    from typing import Any, Callable
+
 
 # unfortunately, the type of HashTrieMap is generic, and if used as an attrs
 # converter, the generic type is presented to mypy, which then fails to match

jsonschema/_typing.py

@@ -1,7 +1,8 @@
 """
 Some (initially private) typing helpers for jsonschema's types.
 """
-from typing import Any, Callable, Iterable, Protocol, Tuple, Union
+from collections.abc import Iterable
+from typing import Any, Callable, Protocol, Union
 
 import referencing.jsonschema
 
@@ -24,5 +25,5 @@ def __call__(
 
 ApplicableValidators = Callable[
     [referencing.jsonschema.Schema],
-    Iterable[Tuple[str, Any]],
+    Iterable[tuple[str, Any]],
 ]

jsonschema/protocols.py

@@ -7,21 +7,14 @@
 
 from __future__ import annotations
 
-from typing import (
-    TYPE_CHECKING,
-    Any,
-    ClassVar,
-    Iterable,
-    Protocol,
-    runtime_checkable,
-)
+from typing import TYPE_CHECKING, ClassVar, Protocol, runtime_checkable
 
 # in order for Sphinx to resolve references accurately from type annotations,
 # it needs to see names like `jsonschema.TypeChecker`
 # therefore, only import at type-checking time (to avoid circular references),
 # but use `jsonschema` for any types which will otherwise not be resolvable
 if TYPE_CHECKING:
-    from collections.abc import Mapping
+    from collections.abc import Any, Iterable, Mapping
 
     import referencing.jsonschema
 

jsonschema/tests/test_jsonschema_test_suite.py

@@ -6,7 +6,6 @@
 See https://github.com/json-schema-org/JSON-Schema-Test-Suite for details.
 """
 
-import sys
 
 from jsonschema.tests._suite import Suite
 import jsonschema
@@ -66,18 +65,6 @@ def complex_email_validation(test):
     )(test)
 
 
-if sys.version_info < (3, 9):  # pragma: no cover
-    message = "Rejecting leading zeros is 3.9+"
-    allowed_leading_zeros = skip(
-        message=message,
-        subject="ipv4",
-        description="invalid leading zeroes, as they are treated as octals",
-    )
-else:
-    def allowed_leading_zeros(test):  # pragma: no cover
-        return
-
-
 def leap_second(test):
     message = "Leap seconds are unsupported."
     return skip(
@@ -149,8 +136,7 @@ def leap_second(test):
     Validator=jsonschema.Draft4Validator,
     format_checker=jsonschema.Draft4Validator.FORMAT_CHECKER,
     skip=lambda test: (
-        allowed_leading_zeros(test)
-        or leap_second(test)
+        leap_second(test)
         or missing_format(jsonschema.Draft4Validator)(test)
         or complex_email_validation(test)
     ),
@@ -167,8 +153,7 @@ def leap_second(test):
     Validator=jsonschema.Draft6Validator,
     format_checker=jsonschema.Draft6Validator.FORMAT_CHECKER,
     skip=lambda test: (
-        allowed_leading_zeros(test)
-        or leap_second(test)
+        leap_second(test)
         or missing_format(jsonschema.Draft6Validator)(test)
         or complex_email_validation(test)
     ),
@@ -187,8 +172,7 @@ def leap_second(test):
     Validator=jsonschema.Draft7Validator,
     format_checker=jsonschema.Draft7Validator.FORMAT_CHECKER,
     skip=lambda test: (
-        allowed_leading_zeros(test)
-        or leap_second(test)
+        leap_second(test)
         or missing_format(jsonschema.Draft7Validator)(test)
         or complex_email_validation(test)
     ),
@@ -224,7 +208,6 @@ def leap_second(test):
     format_checker=jsonschema.Draft201909Validator.FORMAT_CHECKER,
     skip=lambda test: (
         complex_email_validation(test)
-        or allowed_leading_zeros(test)
         or leap_second(test)
         or missing_format(jsonschema.Draft201909Validator)(test)
         or complex_email_validation(test)
@@ -261,7 +244,6 @@ def leap_second(test):
     format_checker=jsonschema.Draft202012Validator.FORMAT_CHECKER,
     skip=lambda test: (
         complex_email_validation(test)
-        or allowed_leading_zeros(test)
         or leap_second(test)
         or missing_format(jsonschema.Draft202012Validator)(test)
         or complex_email_validation(test)

noxfile.py

@@ -35,7 +35,7 @@
     "The Unlicense (Unlicense)",
 ]
 
-SUPPORTED = ["3.8", "3.9", "3.10", "pypy3.10", "3.11", "3.12", "3.13"]
+SUPPORTED = ["3.9", "3.10", "pypy3.10", "3.11", "3.12", "3.13"]
 LATEST_STABLE = "3.12"
 
 nox.options.sessions = []

pyproject.toml

@@ -8,7 +8,7 @@ source = "vcs"
 [project]
 name = "jsonschema"
 description = "An implementation of JSON Schema validation for Python"
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 license = {text = "MIT"}
 keywords = [
     "validation",
@@ -26,7 +26,6 @@ classifiers = [
   "License :: OSI Approved :: MIT License",
   "Operating System :: OS Independent",
   "Programming Language :: Python",
-  "Programming Language :: Python :: 3.8",
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
@@ -198,7 +197,7 @@ ignore = [
   "SLF001",  # Private usage within this package itself is fine
   "TD",  # These TODO style rules are also silly
   "TRY003",  # Some exception classes are essentially intended for free-form
-  "UP007",  # We support 3.8 + 3.9
+  "UP007",  # We support 3.9
 ]
 
 [tool.ruff.lint.flake8-pytest-style]