fix: Remove python 3.7 due to end of life (EOL) (googleapis#737)

* fix: removing Python 3.7 due to EOL

* remove 3.7 from noxfile.py

* remove 3.7 from owlbot.py

* removed 3.7 from sample req.txt

* removed constraints-3.7

* removed references to 3.7 in setup.py

* 🦉 Updates from OwlBot post-processor

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

* adds lower end constraint for db-dtypes with Python 3.8

* removes two more references to 3.7

* 🦉 Updates from OwlBot post-processor

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

* updates constraint

* update constraints for 3.8

* remove protobuf as a direct dependency - test

* 🦉 Updates from OwlBot post-processor

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

---------

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

Author: chalmerlowe

.github/sync-repo-settings.yaml

@@ -11,7 +11,6 @@ branchProtectionRules:
     - 'OwlBot Post Processor'
     - 'docs'
     - 'lint'
-    - 'unit (3.7)'
     - 'unit (3.8)'
     - 'unit (3.9)'
     - 'unit (3.10)'
@@ -20,7 +19,6 @@ branchProtectionRules:
     - 'cover'
     - 'Kokoro'
     - 'Samples - Lint'
-    - 'Samples - Python 3.7'
     - 'Samples - Python 3.8'
     - 'Samples - Python 3.9'
     - 'Samples - Python 3.10'

.github/workflows/unittest.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12']
+        python: ['3.8', '3.9', '3.10', '3.11', '3.12']
     steps:
     - name: Checkout
       uses: actions/checkout@v4

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 and 3.12 on both UNIX and Windows.
+  3.8, 3.9, 3.10, 3.11 and 3.12 on both UNIX and Windows.
 
 - The feature must not add unnecessary dependencies (where
   "unnecessary" is of course subjective, but new dependencies should
@@ -148,7 +148,7 @@ Running System Tests
 
   .. note::
 
-      System tests are only configured to run under Python 3.7, 3.8, 3.9, 3.10, 3.11 and 3.12.
+      System tests are only configured to run under Python 3.8, 3.9, 3.10, 3.11 and 3.12.
       For expediency, we do not run them in older versions of Python 3.
 
   This alone will not run the tests. You'll need to change some local
@@ -221,14 +221,12 @@ Supported Python Versions
 
 We support:
 
--  `Python 3.7`_
 -  `Python 3.8`_
 -  `Python 3.9`_
 -  `Python 3.10`_
 -  `Python 3.11`_
 -  `Python 3.12`_
 
-.. _Python 3.7: 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/
@@ -241,7 +239,7 @@ Supported versions can be found in our ``noxfile.py`` `config`_.
 .. _config: https://github.com/googleapis/python-bigquery-pandas/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

noxfile.py

@@ -32,7 +32,7 @@
 DEFAULT_PYTHON_VERSION = "3.8"
 
 
-UNIT_TEST_PYTHON_VERSIONS = ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
+UNIT_TEST_PYTHON_VERSIONS = ["3.8", "3.9", "3.10", "3.11", "3.12"]
 UNIT_TEST_STANDARD_DEPENDENCIES = [
     "mock",
     "asyncmock",
@@ -58,7 +58,7 @@
     UNIT_TEST_PYTHON_VERSIONS[-1],
 ]
 
-SYSTEM_TEST_PYTHON_VERSIONS = ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
+SYSTEM_TEST_PYTHON_VERSIONS = ["3.8", "3.9", "3.10", "3.11", "3.12"]
 SYSTEM_TEST_STANDARD_DEPENDENCIES = [
     "mock",
     "pytest",
@@ -488,7 +488,7 @@ def prerelease_deps(session):
     session.install(*constraints_deps)
 
     prerel_deps = [
-        "protobuf",
+        # "protobuf",
         # dependency of grpc
         "six",
         "googleapis-common-protos",

owlbot.py

@@ -35,8 +35,8 @@
 }
 extras = ["tqdm"]
 templated_files = common.py_library(
-    unit_test_python_versions=["3.7", "3.8", "3.9", "3.10", "3.11", "3.12"],
-    system_test_python_versions=["3.7", "3.8", "3.9", "3.10", "3.11", "3.12"],
+    unit_test_python_versions=["3.8", "3.9", "3.10", "3.11", "3.12"],
+    system_test_python_versions=["3.8", "3.9", "3.10", "3.11", "3.12"],
     cov_level=96,
     unit_test_external_dependencies=["freezegun"],
     unit_test_extras=extras,

samples/snippets/requirements.txt

@@ -1,8 +1,6 @@
 google-cloud-bigquery-storage==2.24.0
 google-cloud-bigquery==3.14.1
 pandas-gbq==0.20.0
-pandas===1.3.5; python_version == '3.7'
 pandas===2.0.3; python_version == '3.8'
 pandas==2.1.4; python_version >= '3.9'
-pyarrow==12.0.1; python_version == '3.7'
 pyarrow==14.0.1; python_version >= '3.8'

setup.py

@@ -85,7 +85,6 @@
         "License :: OSI Approved :: BSD 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",
@@ -99,7 +98,7 @@
     packages=packages,
     install_requires=dependencies,
     extras_require=extras,
-    python_requires=">=3.7",
+    python_requires=">=3.8",
     include_package_data=True,
     zip_safe=False,
 )

testing/constraints-3.7.txt

@@ -1 +1,20 @@
-numpy==1.17.5
+# This constraints file is used to check that lower bounds
+# are correct in setup.py
+# List *all* library dependencies and extras in this file.
+# Pin the version to the lower bound.
+#
+# e.g., if setup.py has "foo >= 1.14.0, < 2.0.0dev",
+# Then this file should have foo==1.14.0
+# protobuf==3.19.5
+db-dtypes==1.0.4
+google-api-core==2.10.2
+google-auth==2.13.0
+google-auth-oauthlib==0.7.0
+google-cloud-bigquery==3.3.5
+google-cloud-bigquery-storage==2.16.2
+numpy==1.16.6
+pandas==1.1.4
+pyarrow==3.0.0
+pydata-google-auth==1.5.0
+tqdm==4.23.0
+packaging==20.0.0