Chore: Remove Py3.7+3.8 Support

.github/sync-repo-settings.yaml

@@ -11,8 +11,6 @@ branchProtectionRules:
     - 'Kokoro - Against Pub/Sub Lite samples'
     - 'cla/google'
     - 'Samples - Lint'
-    - 'Samples - Python 3.7'
-    - 'Samples - Python 3.8'
     - 'Samples - Python 3.9'
     - 'Samples - Python 3.10'
     - 'Samples - Python 3.11'
@@ -21,8 +19,6 @@ branchProtectionRules:
     - 'docs'
     - 'docfx'
     - 'lint'
-    - 'unit (3.7)'
-    - 'unit (3.8)'
     - 'unit (3.9)'
     - 'unit (3.10)'
     - 'unit (3.11)'

.github/workflows/docs.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
     - name: Setup Python
       uses: actions/setup-python@v6
       with:
@@ -24,7 +24,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
     - name: Setup Python
       uses: actions/setup-python@v6
       with:

.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', '3.14']
+        python: ['3.9', '3.10', '3.11', '3.12', '3.13', '3.14']
     steps:
     - name: Checkout
       uses: actions/checkout@v4

.librarian/generator-input/librarian.py

@@ -326,7 +326,7 @@
     if count < 1:
         raise Exception(".coveragerc replacement failed.")
 
-    s.move([library], excludes=["noxfile.py", "README.rst", "docs/**/*", "setup.py", "testing/constraints-3.7.txt", "testing/constraints-3.8.txt"])
+    s.move([library], excludes=["noxfile.py", "README.rst", "docs/**/*", "setup.py"])
 s.remove_staging_dirs()
 
 # ----------------------------------------------------------------------------

.librarian/generator-input/noxfile.py

@@ -37,8 +37,6 @@
 DEFAULT_PYTHON_VERSION = "3.14"
 
 UNIT_TEST_PYTHON_VERSIONS: List[str] = [
-    "3.7",
-    "3.8",
     "3.9",
     "3.10",
     "3.11",

.librarian/generator-input/setup.py

@@ -47,10 +47,8 @@
     "protobuf>=3.20.2,<7.0.0,!=4.21.0,!=4.21.1,!=4.21.2,!=4.21.3,!=4.21.4,!=4.21.5",
     "grpc-google-iam-v1 >= 0.12.4, < 1.0.0",
     "grpcio-status >= 1.33.2",
-    "opentelemetry-api <= 1.22.0; python_version<='3.7'",
-    "opentelemetry-api >= 1.27.0; python_version>='3.8'",
-    "opentelemetry-sdk <= 1.22.0; python_version<='3.7'",
-    "opentelemetry-sdk >= 1.27.0; python_version>='3.8'",
+    "opentelemetry-api >= 1.27.0",
+    "opentelemetry-sdk >= 1.27.0",
 ]
 extras = {"libcst": "libcst >= 0.3.10"}
 url = "https://github.com/googleapis/python-pubsub"
@@ -82,8 +80,6 @@
         "License :: OSI Approved :: Apache Software License",
         "Programming Language :: Python",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.7",
-        "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
@@ -97,7 +93,7 @@
     packages=packages,
     install_requires=dependencies,
     extras_require=extras,
-    python_requires=">=3.7",
+    python_requires=">=3.9",
     include_package_data=True,
     zip_safe=False,
 )

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, 3.13 and 3.14 on both UNIX and Windows.
+  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
@@ -195,11 +195,11 @@ configure them just like the System Tests.
 
    # Run all tests in a folder
    $ cd samples/snippets
-   $ nox -s py-3.8
+   $ nox -s py-3.14
 
    # Run a single sample test
    $ cd samples/snippets
-   $ nox -s py-3.8 -- -k <name of test>
+   $ nox -s py-3.14 -- -k <name of test>
 
 ********************************************
 Note About ``README`` as it pertains to PyPI
@@ -221,17 +221,13 @@ 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/

README.rst

@@ -1,7 +1,7 @@
 Python Client for Google Cloud Pub / Sub
 ========================================
 
-|GA| |pypi| |versions| 
+|GA| |pypi| |versions|
 
 `Google Cloud Pub / Sub`_ is a fully-managed real-time messaging service that
 allows you to send and receive messages between independent applications. You
@@ -60,11 +60,13 @@ dependencies.
 
 Supported Python Versions
 ^^^^^^^^^^^^^^^^^^^^^^^^^
-Python >= 3.7
+Python >= 3.9
 
 Deprecated Python Versions
 ^^^^^^^^^^^^^^^^^^^^^^^^^^
-Python <= 3.6.
+Python < 3.9
+
+The last version of this library compatible with Python 3.7 and 3.8 is google-cloud-pubsub==2.34.0.
 
 The last version of this library compatible with Python 2.7 is google-cloud-pubsub==1.7.0.
 
@@ -146,7 +148,7 @@ the topic, and subscribe to that, passing a callback function.
 
     with pubsub_v1.SubscriberClient() as subscriber:
         subscriber.create_subscription(
-            name=subscription_name, topic=topic_name)  
+            name=subscription_name, topic=topic_name)
         future = subscriber.subscribe(subscription_name, callback)
 
 The future returned by the call to ``subscriber.subscribe`` can be used to
@@ -190,7 +192,7 @@ For example, to use JSON Web Tokens, provide a `google.auth.jwt.Credentials`_ in
 
     # The same for the publisher, except that the "audience" claim needs to be adjusted
     publisher_audience = "https://pubsub.googleapis.com/google.pubsub.v1.Publisher"
-    credentials_pub = credentials.with_claims(audience=publisher_audience) 
+    credentials_pub = credentials.with_claims(audience=publisher_audience)
     publisher = pubsub_v1.PublisherClient(credentials=credentials_pub)
 
 .. _Credentials: https://google-auth.readthedocs.io/en/latest/reference/google.auth.credentials.html#google.auth.credentials.Credentials

librarian.py

@@ -326,7 +326,15 @@
     if count < 1:
         raise Exception(".coveragerc replacement failed.")
 
-    s.move([library], excludes=["noxfile.py", "README.rst", "docs/**/*", "setup.py", "testing/constraints-3.7.txt", "testing/constraints-3.8.txt"])
+    s.move(
+        [library],
+        excludes=[
+            "noxfile.py",
+            "README.rst",
+            "docs/**/*",
+            "setup.py",
+        ],
+    )
 s.remove_staging_dirs()
 
 # ----------------------------------------------------------------------------
@@ -338,10 +346,10 @@
     samples=True,
     cov_level=99,
     versions=gcp.common.detect_versions(path="./google", default_first=True),
-    unit_test_python_versions=["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14"],
+    unit_test_python_versions=["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"],
     unit_test_dependencies=["flaky"],
     system_test_python_versions=["3.12"],
-    system_test_external_dependencies=["psutil","flaky"],
+    system_test_external_dependencies=["psutil", "flaky"],
 )
 s.move(templated_files, excludes=[".coveragerc", ".github/**", "README.rst", "docs/**", ".kokoro/**"])
 

mypy.ini

@@ -1,3 +1,3 @@
 [mypy]
-python_version = 3.7
+python_version = 3.14
 namespace_packages = True

noxfile.py

@@ -41,8 +41,6 @@
 DEFAULT_PYTHON_VERSION = "3.14"
 
 UNIT_TEST_PYTHON_VERSIONS: List[str] = [
-    "3.7",
-    "3.8",
     "3.9",
     "3.10",
     "3.11",