Drop support for Python 3.8, which is at end of life

Also add tests for Python 3.13.

.github/workflows/test.yml

@@ -16,20 +16,20 @@ jobs:
     with:
       coverage: 'codecov'
       envs: |
-        - linux: py38
         - linux: py39
         - linux: py310
         - linux: py311
         - linux: py312
-        - macos: py38
+        - linux: py313
         - macos: py39
         - macos: py310
         - macos: py311
         - macos: py312
-        - windows: py38
+        - macos: py313
         - windows: py39
         - windows: py310
         - windows: py311
         - windows: py312
+        - windows: py313
     secrets:
       CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}

gcn_kafka/env.py

@@ -8,15 +8,6 @@
 replacement_dict = {"_": ".", "__": "-", "___": "_"}
 
 
-# Adapted from https://peps.python.org/pep-0616/
-# # FIXME: Remove after dropping support for Python 3.8
-def removeprefix(self: str, prefix: str) -> str:
-    if self.startswith(prefix):
-        return self[len(prefix) :]
-    else:
-        return self[:]
-
-
 def replacement(match: re.Match) -> str:
     text = match[0]
     return replacement_dict.get(text) or text
@@ -40,6 +31,6 @@ def config_from_env(
     config = {}
     for key, value in env.items():
         if key.startswith(prefix):
-            key = env_key_splitter.sub(replacement, removeprefix(key, prefix))
+            key = env_key_splitter.sub(replacement, key.removeprefix(prefix))
             config[key.lower()] = value
     return config

pyproject.toml

@@ -25,7 +25,7 @@ dependencies = [
     "confluent-kafka >= 2.2.0",
     "requests",
 ]
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 dynamic = [ "version" ]
 
 [project.urls]