ENH: Drop Python 3.8 from default builds

Python 3.8 reached its end-of-life (EOL) on October 7, 2024.

Closes InsightSoftwareConsortium#285

Author: thewtex

scripts/internal/manylinux-build-common.sh

@@ -12,7 +12,7 @@ if [[ $# -eq 0 ]]; then
   PYBIN=(/opt/python/*/bin)
   PYBINARIES=()
   for version in "${PYBIN[@]}"; do
-    if [[ ${version} == *"cp38"* || ${version} == *"cp39"* || ${version} == *"cp310"* || ${version} == *"cp311"* ]]; then
+    if [[ ${version} == *"cp39"* || ${version} == *"cp310"* || ${version} == *"cp311"* ]]; then
       PYBINARIES+=(${version})
     fi
   done

scripts/internal/windows_build_common.py

@@ -4,7 +4,7 @@
 import os
 import shutil
 
-DEFAULT_PY_ENVS = ["38-x64", "39-x64", "310-x64", "311-x64"]
+DEFAULT_PY_ENVS = ["39-x64", "310-x64", "311-x64"]
 
 SCRIPT_DIR = os.path.dirname(__file__)
 ROOT_DIR = os.path.abspath(os.path.join(SCRIPT_DIR, "..", ".."))

scripts/macpython-install-python.sh

@@ -416,7 +416,7 @@ else
   # Deployment target requirements:
   # * 10.9: Python 3.7
   # * 11: Python >= 3.8
-  for pyversion in $LATEST_3p8 $LATEST_3p9 $LATEST_3p10 $LATEST_3p11; do
+  for pyversion in $LATEST_3p9 $LATEST_3p10 $LATEST_3p11; do
     install_macpython $pyversion 11
     install_virtualenv
   done