Add Python 3.12 and limit MacOS/Window's tests.

.github/workflows/run-pytest.yml

@@ -16,39 +16,71 @@ concurrency:
   cancel-in-progress: true
 jobs:
   test:
+    name: test (${{ matrix.os }}, ${{ matrix.python }}, ${{ matrix.dependencies }})
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest]
-        config: [ {python: '3.9', dependencies: 'newest'},
-                  {python: '3.10', dependencies: 'newest'},
-                  {python: '3.11', dependencies: 'newest'},
-                  {python: '3.11', dependencies: 'minimal'},
-                  {python: '3.8', dependencies: 'oldest'} ]
+        os: [ubuntu-latest]
+        python: ['3.8', '3.9', '3.10', '3.11', '3.12']
+        # Unused key to force creation of new entries in the matrix
+        default: ['true']
+        include:
+          # Defaults to newest dependencies
+          - dependencies: 'newest'
+          # Oldest dependency tests
+          - python: '3.8'
+            dependencies: 'oldest'
+          - os: 'macos-latest'
+            python: '3.8'
+            dependencies: 'oldest'
+          - os: 'windows-latest'
+            python: '3.8'
+            dependencies: 'oldest'
+          # Newest version tests for non-Linux OS
+          - os: 'ubuntu-latest'
+            python: '3.12'
+            dependencies: 'newest'
+          - os: 'macos-latest'
+            python: '3.12'
+            dependencies: 'newest'
+          - os: 'windows-latest'
+            python: '3.12'
+            dependencies: 'newest'
+          # Minimal dependencies tests
+          - default: 'false'
+            os: 'ubuntu-latest'
+            python: '3.12'
+            dependencies: 'minimal'
+          - os: 'macos-latest'
+            python: '3.12'
+            dependencies: 'minimal'
+          - os: 'windows-latest'
+            python: '3.12'
+            dependencies: 'minimal'
     steps:
     - uses: actions/checkout@v3
-    - name: Set up Python ${{ matrix.config.python }}
+    - name: Set up Python ${{ matrix.python }}
       uses: actions/setup-python@v4
       with:
-        python-version: ${{ matrix.config.python }}
+        python-version: ${{ matrix.python }}
     - name: Install newest dependencies
       run: |
         pip install -r requirements/requirements-test.txt
         pip install -r requirements/requirements-test-optional.txt
-      if: ${{ matrix.config.dependencies == 'newest' }}
+      if: ${{ matrix.dependencies == 'newest' }}
     - name: Install minimal dependencies
       run: |
         pip install -r requirements/requirements-test.txt
-      if: ${{ matrix.config.dependencies == 'minimal' }}
+      if: ${{ matrix.dependencies == 'minimal' }}
     - name: Install oldest supported dependencies
       # To prevent Dependabot from updating the pinnings in this "oldest"
       # dependency list, we have to avoid the word "requirements" in the
       # filename. That's why it is in the .github/ directory and named "reqs"
       # instead of "requirements."
       run: |
         pip install -r .github/workflows/ci-oldest-reqs.txt
-      if: ${{ matrix.config.dependencies == 'oldest' }}
+      if: ${{ matrix.dependencies == 'oldest' }}
     - name: Install the package
       run: |
         pip install -e .

changelog.txt

@@ -10,9 +10,15 @@ Version 2
 [2.2.0] -- 2023-xx-xx
 ---------------------
 
+Added
++++++
+
+ - Official support for Python 3.12 (#957).
+
 Changed
 +++++++
 
+ - Restrict allowable tar file features in Python 3.12 (#957).
  - linked views now can contain spaces and other characters except directory separators (#926).
  - linked views now can be created on Windows, if 'Developer mode' is enabled (#430).
 

pyproject.toml

@@ -27,6 +27,7 @@ classifiers = [
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: Implementation :: CPython",
     "Programming Language :: Python :: Implementation :: PyPy",
 ]
@@ -100,7 +101,10 @@ follow_imports = 'skip'
 
 [tool.pytest.ini_options]
 xfail_strict = true
-filterwarnings = "error"
+filterwarnings = [
+    "error",
+    "ignore::DeprecationWarning:dateutil.*",
+]
 
 [tool.coverage.run]
 branch = true

signac/import_export.py

@@ -9,6 +9,7 @@
 import os
 import re
 import shutil
+import sys
 import tarfile
 import zipfile
 from collections import Counter
@@ -1144,7 +1145,12 @@ def read_statepoint_file(path):
             "The jobs identified with the given schema function are not unique!"
         )
 
-    tarfile.extractall(path=tmpdir)
+    if sys.version_info[:2] >= (3, 12):
+        # the data filter should support all needed operations for users using signac's import
+        # feature. Other filters assume Unix specific features.
+        tarfile.extractall(path=tmpdir, filter="data")
+    else:
+        tarfile.extractall(path=tmpdir)
     for path, job in mappings.items():
         if not os.path.isdir(tmpdir):
             raise RuntimeError(f"The provided tmpdir {tmpdir} is not a directory.")