revert to 3.10

Author: ohmayr

.github/.OwlBot.lock.yaml

@@ -13,5 +13,5 @@
 # limitations under the License.
 docker:
   image: gcr.io/cloud-devrel-public-resources/owlbot-python:latest
-  digest: sha256:4a9e5d44b98e8672e2037ee22bc6b4f8e844a2d75fcb78ea8a4b38510112abc6
+  digest: sha256:710b70faff81151657d89db6e028c23a1051787598c8276bdd8eef25c92da8ab
 # created: 2025-04-10T17:48:54.829145676Z

noxfile.py

@@ -32,7 +32,7 @@
 ISORT_VERSION = "isort==5.11.0"
 LINT_PATHS = ["docs", "google", "tests", "noxfile.py", "setup.py"]
 
-DEFAULT_PYTHON_VERSION = "3.10"
+DEFAULT_PYTHON_VERSION = "3.8"
 
 UNIT_TEST_PYTHON_VERSIONS: List[str] = [
     "3.7",

owlbot.py

@@ -103,8 +103,8 @@ def get_staging_dirs(
     unit_test_external_dependencies=["six"],
     system_test_external_dependencies=["six"],
     cov_level=100,
-    default_python_version="3.13",
-    system_test_python_versions=["3.13"],
+    default_python_version="3.10",
+    system_test_python_versions=["3.10"],
 )
 s.move(
     templated_files,
@@ -116,7 +116,7 @@ def get_staging_dirs(
 python.configure_previous_major_version_branches()
 
 # Preserve system tests w/ GOOGLE_DISABLE_GRPC set (#133, PR #136)
-s.replace(
+assert 1 == s.replace(
     "noxfile.py",
     r"""\
 @nox.session\(python=SYSTEM_TEST_PYTHON_VERSIONS\)
@@ -129,7 +129,7 @@ def system(session, disable_grpc):
 """,
 )
 
-s.replace(
+assert 1 == s.replace(
     "noxfile.py",
     """\
     # Run py.test against the system tests.
@@ -143,7 +143,7 @@ def system(session, disable_grpc):
 """,
 )
 
-s.replace(
+assert 1 == s.replace(
     "noxfile.py",
     """system_test_path,
             \*session.posargs,
@@ -154,7 +154,7 @@ def system(session, disable_grpc):
         )""",
 )
 
-s.replace(
+assert 1 == s.replace(
     "noxfile.py",
     """system_test_folder_path,
             \*session.posargs,
@@ -166,7 +166,7 @@ def system(session, disable_grpc):
 )
 
 # Add nox session to exercise doctests
-s.replace(
+assert 1 == s.replace(
     "noxfile.py",
     r"""\
     "blacken",
@@ -179,14 +179,14 @@ def system(session, disable_grpc):
 """,
 )
 
-s.replace(
+assert 1 == s.replace(
     "noxfile.py",
     r"""\
 @nox.session\(python="3.10"\)
 def docfx\(session\):
 """,
     """\
-@nox.session(python="3.13")
+@nox.session(python="3.9")
 def doctests(session):
     # Install all test dependencies, then install this package into the
     # virtualenv's dist-packages.
@@ -197,7 +197,7 @@ def doctests(session):
     session.run("py.test", "tests/doctests.py")
 
 
-@nox.session(python="3.13")
+@nox.session(python="3.10")
 def docfx(session):
 """,
 )