Upgrade to Pants 2.31.0 (#30)

Author: cburroughs

.github/workflows/pants.yaml

@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-24.04
     strategy:
       matrix:
-        python-version: [3.8]
+        python-version: [3.12]
     steps:
       - uses: actions/checkout@v5
 

pants.toml

@@ -1,5 +1,5 @@
 [GLOBAL]
-pants_version = "2.28.0"
+pants_version = "2.31.0"
 
 backend_packages = [
   "pants.backend.docker",
@@ -23,8 +23,8 @@ repo_id = "B573B56B-6289-40C5-ADB7-4C5FA659EAD1"
 
 [python]
 # We use a narrow interpreter constraint to ensure that Python PEX'es will be executable by our
-# selected Docker base image, `python:3.8`.
-interpreter_constraints = ["==3.8.*"]
+# selected Docker base image, `python:3.12`.
+interpreter_constraints = ["==3.12.*"]
 
 [python-infer]
 use_rust_parser = true

src/docker/dynamic_tags/BUILD

@@ -14,7 +14,7 @@ docker_image(
         # provided in the Dockerfile instruction, while still being overridable from the environment.
         #
         # "ARG DYNAMIC_TAG=default",
-        "FROM python:3.8",
+        "FROM python:3.12",
         "RUN pip install --no-cache-dir cowsay==4.0",
         'CMD ["cowsay", "demo"]',
     ],

src/docker/hello_world/Dockerfile.python

@@ -1,6 +1,6 @@
 # Copyright 2022 Pants project contributors.
 # Licensed under the Apache License, Version 2.0 (see LICENSE).
 
-FROM python:3.8
+FROM python:3.12
 ENTRYPOINT ["/bin/main.pex"]
 COPY src.python.hello_world/main.pex /bin

src/docker/multiplatform/Dockerfile.base

@@ -1,3 +1,3 @@
-FROM python:3.8
+FROM python:3.12
 
 RUN echo "base image" >> base.txt