feat: Add Python 3.14 support (#333)

* feat(ci): Add Python 3.14 support to owlbot.py

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* feat(ci): Add Python 3.14 support to core files

* Apply suggestion from @chalmerlowe

3.7 is not supported in this repo.

* Apply suggestion from @chalmerlowe

* Apply suggestion from @chalmerlowe

3.7 is not supported in this repo.

* fix(ci): Remove unit (3.7) from required checks

* fix(coverage): Remove obsolete Python < 3.8 import logic

* fix(coverage): Add no cover pragma for api_key import

* fix(ci): Correct lint errors and coverage pragma case

---------

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Author: chalmerlowe

packages/google-cloud-core/.github/sync-repo-settings.yaml

@@ -11,12 +11,13 @@ branchProtectionRules:
     # No Kokoro:  the following are Github actions
     - 'mypy'
     - 'lint'
-    - 'unit (3.7)'
     - 'unit (3.8)'
     - 'unit (3.9)'
     - 'unit (3.10)'
     - 'unit (3.11)'
     - 'unit (3.12)'
+    - 'unit (3.13)'
+    - 'unit (3.14)'
     - 'cover'
     - 'docs'
     - 'docfx'

packages/google-cloud-core/.github/workflows/unittest.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-22.04
     strategy:
       matrix:
-        python: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12', '3.13']
+        python: ['3.8', '3.9', '3.10', '3.11', '3.12', '3.13', '3.14']
     steps:
     - name: Checkout
       uses: actions/checkout@v4

packages/google-cloud-core/CONTRIBUTING.rst

@@ -22,7 +22,7 @@ In order to add a feature:
   documentation.
 
 - The feature must work fully on the following CPython versions:
-  3.7, 3.8, 3.9, 3.10, 3.11, 3.12 and 3.13 on both UNIX and Windows.
+  3.8, 3.9, 3.10, 3.11, 3.12, 3.13 and 3.14 on both UNIX and Windows.
 
 - The feature must not add unnecessary dependencies (where
   "unnecessary" is of course subjective, but new dependencies should
@@ -72,7 +72,7 @@ We use `nox <https://nox.readthedocs.io/en/latest/>`__ to instrument our tests.
 
 - To run a single unit test::
 
-    $ nox -s unit-3.13 -- -k <name of test>
+    $ nox -s unit-3.14 -- -k <name of test>
 
 
   .. note::
@@ -221,29 +221,29 @@ Supported Python Versions
 
 We support:
 
--  `Python 3.7`_
 -  `Python 3.8`_
 -  `Python 3.9`_
 -  `Python 3.10`_
 -  `Python 3.11`_
 -  `Python 3.12`_
 -  `Python 3.13`_
+-  `Python 3.14`_
 
-.. _Python 3.7: https://docs.python.org/3.7/
 .. _Python 3.8: https://docs.python.org/3.8/
 .. _Python 3.9: https://docs.python.org/3.9/
 .. _Python 3.10: https://docs.python.org/3.10/
 .. _Python 3.11: https://docs.python.org/3.11/
 .. _Python 3.12: https://docs.python.org/3.12/
 .. _Python 3.13: https://docs.python.org/3.13/
+.. _Python 3.14: https://docs.python.org/3.14/
 
 
 Supported versions can be found in our ``noxfile.py`` `config`_.
 
 .. _config: https://github.com/googleapis/python-cloud-core/blob/main/noxfile.py
 
 
-We also explicitly decided to support Python 3 beginning with version 3.7.
+We also explicitly decided to support Python 3 beginning with version 3.8.
 Reasons for this include:
 
 -  Encouraging use of newest versions of Python 3

packages/google-cloud-core/google/cloud/client/__init__.py

@@ -34,8 +34,9 @@
     import google.auth.api_key
 
     HAS_GOOGLE_AUTH_API_KEY = True
-except ImportError:
-    HAS_GOOGLE_AUTH_API_KEY = False
+except ImportError:  # pragma: NO COVER
+    HAS_GOOGLE_AUTH_API_KEY = False  # pragma: NO COVER
+    # TODO: Investigate adding a test for google.auth.api_key ImportError (https://github.com/googleapis/python-cloud-core/issues/334)
 
 
 _GOOGLE_AUTH_CREDENTIALS_HELP = (

packages/google-cloud-core/google/cloud/obsolete/__init__.py

@@ -14,16 +14,10 @@
 
 """Helpers for deprecated code and modules."""
 
-import sys
+import importlib.metadata as metadata
 import warnings
 
 
-if sys.version_info < (3, 8):
-    import importlib_metadata as metadata
-else:
-    import importlib.metadata as metadata
-
-
 def complain(distribution_name):
     """Issue a warning if `distribution_name` is installed.
 

packages/google-cloud-core/noxfile.py

@@ -96,7 +96,7 @@ def default(session):
     )
 
 
-@nox.session(python=["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13"])
+@nox.session(python=["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14"])
 def unit(session):
     """Default unit test session."""
     default(session)

packages/google-cloud-core/owlbot.py

@@ -26,6 +26,7 @@
 templated_files = common.py_library(
     microgenerator=True,
     cov_level=100,
+    unit_test_python_versions=["3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14"],
 )
 s.move(
     templated_files,

packages/google-cloud-core/setup.py

@@ -34,7 +34,8 @@
 ]
 extras = {
     "grpc": [
-        "grpcio >= 1.38.0, < 2.0.0",
+        "grpcio >= 1.38.0, < 2.0.0; python_version < '3.14'",
+        "grpcio >= 1.75.1, < 2.0.0; python_version >= '3.14'",
         "grpcio-status >= 1.38.0, < 2.0.0",
     ],
 }
@@ -82,6 +83,7 @@
         "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: 3.12",
         "Programming Language :: Python :: 3.13",
+        "Programming Language :: Python :: 3.14",
         "Operating System :: OS Independent",
         "Topic :: Internet",
     ],