feat: remove python 3.8 support

.github/workflows/pythonpackage.yml

@@ -9,10 +9,10 @@ permissions:
 
 jobs:
   testing:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     strategy:
       matrix:
-        PYTHON_VERSION: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        PYTHON_VERSION: ["3.9", "3.10", "3.11", "3.12"]
     steps:
     - uses: actions/checkout@v2
 

.github/workflows/readthedocs.yaml

@@ -13,7 +13,7 @@ permissions:
 
 jobs:
   documentation-links:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     steps:
       - uses: readthedocs/actions/preview@v1
         with:

README.md

@@ -37,7 +37,7 @@
 
 `pip install fgpyo`
 
-**Requires python 3.8+**
+**Requires python 3.9+**
 
 See documentation on [fgpyo.readthedocs.org][rtd-link].
 
@@ -48,7 +48,7 @@ See documentation on [fgpyo.readthedocs.org][rtd-link].
 A simple way to create an environment with the desired version of python and poetry is to use [conda][conda-link].  E.g.:
 
 ```bash
-conda create -n fgpyo -c conda-forge "python>=3.8" poetry
+conda create -n fgpyo -c conda-forge "python>=3.9" poetry
 conda activate fgpyo
 
 # --all-extras is required to install `mkdocs` and associated dependencies,

fgpyo/util/inspect.py

@@ -71,10 +71,9 @@ def get_attr_fields_dict(cls: type) -> Dict[str, dataclasses.Field]:  # type: ig
 if TYPE_CHECKING:  # pragma: no cover
     from _typeshed import DataclassInstance
 else:
-    # https://github.com/python/typeshed/blob/727f3c4320d2af3af2f16695e24dd78e79b7c070/stdlib/_typeshed/__init__.pyi#L348
-    # TODO: update the hint to `Field[Any]` when we drop support for 3.8
+
     class DataclassInstance(Protocol):
-        __dataclasses_fields__: ClassVar[Dict[str, dataclasses.Field]]
+        __dataclasses_fields__: ClassVar[Dict[str, dataclasses.Field[Any]]]
 
 
 if TYPE_CHECKING and _use_attr:  # pragma: no cover
@@ -458,7 +457,7 @@ def attr_from(
             # True, because python, so we need to check for that explicitly
             if not set_value and attribute.type is not None and not attribute.type == bool:
                 try:
-                    return_value = attribute.type(str_value)
+                    return_value = attribute.type(str_value)  # type: ignore[operator]
                     set_value = True
                 except (ValueError, TypeError):
                     pass

mkdocs.yml

@@ -13,7 +13,8 @@ theme:
   collapse_navigation: false
 repo_url: https://github.com/fulcrumgenomics/fgpyo
 plugins:
-  - autorefs
+  - autorefs:
+      resolve_closest: true
   - include-markdown
   - search
   - gen-files:

pyproject.toml

@@ -23,7 +23,7 @@ classifiers = [
 include = ["LICENSE"]
 
 [tool.poetry.dependencies]
-python = ">=3.8.0,<4.0"
+python = ">=3.9.0,<4.0"
 attrs = ">=19.3.0"
 pysam = ">=0.22.1"
 typing_extensions = { version = ">=3.7.4", python = "<3.12" }
@@ -73,7 +73,6 @@ unfixable = ["B"]
 force-single-line = true
 
 [tool.mypy]
-python_version              = 3.8
 strict_optional             = false
 check_untyped_defs          = true
 disallow_incomplete_defs    = true