Add support for Python 3.14 and drop EOL 3.9 (#709)

Author: hugovk

.github/workflows/ci.yml

@@ -14,11 +14,11 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
 
     steps:
       - name: Checkout source
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup conda
         uses: conda-incubator/setup-miniconda@v3
@@ -47,8 +47,8 @@ jobs:
     name: lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v4
+      - uses: actions/checkout@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: "3.11"
-      - uses: pre-commit/[email protected].0
+      - uses: pre-commit/[email protected].1

.pre-commit-config.yaml

@@ -3,26 +3,26 @@
 exclude: versioneer.py
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.4.0
+    rev: v6.0.0
     hooks:
       - id: end-of-file-fixer
       - id: requirements-txt-fixer
       - id: trailing-whitespace
-  - repo: https://github.com/psf/black
-    rev: 22.10.0
+  - repo: https://github.com/psf/black-pre-commit-mirror
+    rev: 25.11.0
     hooks:
       - id: black
         args:
-          - --target-version=py37
+          - --target-version=py310
   - repo: https://github.com/pycqa/flake8
-    rev: 6.0.0
+    rev: 7.3.0
     hooks:
       - id: flake8
   - repo: https://github.com/asottile/seed-isort-config
     rev: v2.2.0
     hooks:
       - id: seed-isort-config
   - repo: https://github.com/pre-commit/mirrors-isort
-    rev: v5.7.0
+    rev: v5.10.1
     hooks:
       - id: isort

docs/environment.yml

@@ -2,7 +2,7 @@ name: s3fs
 channels:
   - defaults
 dependencies:
-  - python= 3.9
+  - python= 3.10
   - docutils<0.17
   - sphinx
   - sphinx_rtd_theme

gcsfs/checkers.py

@@ -1,7 +1,6 @@
 import base64
 from base64 import b64encode
 from hashlib import md5
-from typing import Optional
 
 from .retry import ChecksumError
 
@@ -104,7 +103,7 @@ def validate_http_response(self, r):
         return self.validate_headers(r.headers)
 
 
-def get_consistency_checker(consistency: Optional[str]) -> ConsistencyChecker:
+def get_consistency_checker(consistency: str | None) -> ConsistencyChecker:
     if consistency == "size":
         return SizeChecker()
     elif consistency == "md5":

gcsfs/core.py

@@ -146,7 +146,7 @@ def _coalesce_generation(*args):
     if len(generations) > 1:
         raise ValueError(
             "Cannot coalesce generations where more than one are defined,"
-            " {}".format(generations)
+            f" {generations}"
         )
     elif len(generations) == 0:
         return None

gcsfs/inventory_report.py

@@ -623,7 +623,7 @@ def _convert_str_to_datetime(str):
         return datetime.fromisoformat(str.replace("Z", "+00:00"))
 
 
-class InventoryReportConfig(object):
+class InventoryReportConfig:
     """
     Represents the configuration for fetching inventory reports.
 

gcsfs/tests/test_fuse.py

@@ -1,6 +1,5 @@
 import logging
 import os
-import sys
 import tempfile
 import threading
 import time
@@ -11,7 +10,6 @@
 from gcsfs.tests.settings import TEST_BUCKET
 
 
-@pytest.mark.timeout(180)
 @pytest.fixture
 def fsspec_fuse_run():
     """Fixture catches other errors on fuse import."""
@@ -26,7 +24,6 @@ def fsspec_fuse_run():
         pytest.skip("Error importing fuse.")
 
 
-@pytest.mark.skipif(sys.version_info < (3, 9), reason="Test fuse causes hang.")
 @pytest.mark.xfail(reason="Failing test not previously tested.")
 @pytest.mark.timeout(180)
 def test_fuse(gcs, fsspec_fuse_run):
@@ -40,7 +37,7 @@ def test_fuse(gcs, fsspec_fuse_run):
     timeout = 20
     n = 40
     for i in range(n):
-        logging.debug(f"Attempt # {i+1}/{n} to create lock file.")
+        logging.debug(f"Attempt # {i + 1}/{n} to create lock file.")
         try:
             open(os.path.join(mountpath, "lock"), "w").close()
             os.remove(os.path.join(mountpath, "lock"))

gcsfs/tests/test_inventory_report.py

@@ -8,7 +8,7 @@
 from gcsfs.inventory_report import InventoryReport, InventoryReportConfig
 
 
-class TestInventoryReport(object):
+class TestInventoryReport:
     """
     Unit tests for the inventory report logic, see 'inventory_report.py'.
 

setup.cfg

@@ -5,9 +5,6 @@ versionfile_source = gcsfs/_version.py
 versionfile_build = gcsfs/_version.py
 tag_prefix =
 
-[bdist_wheel]
-universal=1
-
 [flake8]
 exclude = versioneer.py,docs/source/conf.py
 ignore =

setup.py

@@ -18,17 +18,17 @@
         "Intended Audience :: Developers",
         "License :: OSI Approved :: BSD License",
         "Operating System :: OS Independent",
-        "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: 3.12",
         "Programming Language :: Python :: 3.13",
+        "Programming Language :: Python :: 3.14",
     ],
     keywords=["google-cloud-storage", "gcloud", "file-system"],
     packages=["gcsfs", "gcsfs.cli"],
     install_requires=[open("requirements.txt").read().strip().split("\n")],
     extras_require={"gcsfuse": ["fusepy"], "crc": ["crcmod"]},
-    python_requires=">=3.9",
+    python_requires=">=3.10",
     long_description_content_type="text/markdown",
     long_description=open("README.md").read(),
     zip_safe=False,