Put py38 support back in; reserve for major release cycle.

.circleci/config.yml

@@ -118,6 +118,12 @@ jobs:
         environment:
           TOXENV: docs
 
+  py38-core:
+    <<: *common
+    docker:
+      - image: cimg/python:3.8
+        environment:
+          TOXENV: py38-core
   py39-core:
     <<: *common
     docker:
@@ -149,6 +155,12 @@ jobs:
         environment:
           TOXENV: py313-core
 
+  py38-lint:
+    <<: *common
+    docker:
+      - image: cimg/python:3.8
+        environment:
+          TOXENV: py38-lint
   py39-lint:
     <<: *common
     docker:
@@ -180,6 +192,12 @@ jobs:
         environment:
           TOXENV: py313-lint
 
+  py38-wheel:
+    <<: *common
+    docker:
+      - image: cimg/python:3.8
+        environment:
+          TOXENV: py38-wheel
   py39-wheel:
     <<: *common
     docker:
@@ -250,6 +268,12 @@ jobs:
       - <<: *run-tox-step
       - <<: *save-cache-step
 
+  py38-bls:
+    <<: *common
+    docker:
+      - image: cimg/python:3.8
+        environment:
+          TOXENV: py38-bls
   py39-bls:
     <<: *common
     docker:
@@ -283,16 +307,19 @@ jobs:
 
 define: &all_jobs
   - docs
+  - py38-core
   - py39-core
   - py310-core
   - py311-core
   - py312-core
   - py313-core
+  - py38-lint
   - py39-lint
   - py310-lint
   - py311-lint
   - py312-lint
   - py313-lint
+  - py38-wheel
   - py39-wheel
   - py310-wheel
   - py311-wheel
@@ -301,6 +328,7 @@ define: &all_jobs
   - py311-windows-wheel
   - py312-windows-wheel
   - py313-windows-wheel
+  - py38-bls
   - py39-bls
   - py310-bls
   - py311-bls

.pre-commit-config.yaml

@@ -11,7 +11,7 @@ repos:
     rev: v3.15.0
     hooks:
     -   id: pyupgrade
-        args: [--py39-plus]
+        args: [--py38-plus]
 -   repo: https://github.com/psf/black
     rev: 23.9.1
     hooks:

newsfragments/148.internal.rst

@@ -1 +1 @@
-Drop python 3.8 and add 3.13 in CI and lib metadata
+Add support for 3.13 in CI and lib metadata.

setup.py

@@ -52,7 +52,7 @@
         "eth-utils>=2.0.0",
         "cached-property>=1.5.1",
     ],
-    python_requires=">=3.9, <4",
+    python_requires=">=3.8, <4",
     extras_require=extras_require,
     py_modules=["py_ecc"],
     license="MIT",
@@ -66,6 +66,7 @@
         "License :: OSI Approved :: MIT License",
         "Natural Language :: English",
         "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",

tox.ini

@@ -1,9 +1,9 @@
 [tox]
 envlist=
-    py{39,310,311,312,313}-core
-    py{39,310,311,312,313}-lint
-    py{39,310,311,312,313}-wheel
-    py{39,310,311,312,313}-bls
+    py{38,39,310,311,312,313}-core
+    py{38,39,310,311,312,313}-lint
+    py{38,39,310,311,312,313}-wheel
+    py{38,39,310,311,312,313}-bls
     windows-wheel
     docs
 
@@ -27,6 +27,7 @@ commands=
 basepython=
     docs: python
     windows-wheel: python
+    py38: python3.8
     py39: python3.9
     py310: python3.10
     py311: python3.11
@@ -37,14 +38,14 @@ extras=
     docs
 allowlist_externals=make,pre-commit
 
-[testenv:py{39,310,311,312,313}-lint]
+[testenv:py{38,39,310,311,312,313}-lint]
 deps=pre-commit
 extras=dev
 commands=
     pre-commit install
     pre-commit run --all-files --show-diff-on-failure
 
-[testenv:py{39,310,311,312,313}-wheel]
+[testenv:py{38,39,310,311,312,313}-wheel]
 deps=
     wheel
     build[virtualenv]