feat(nox): Add Python 3.14 support to noxfile

Author: chalmerlowe

noxfile.py

@@ -44,6 +44,7 @@
     "3.11",
     "3.12",
     "3.13",
+    "3.14",
 ]
 UNIT_TEST_STANDARD_DEPENDENCIES = [
     "mock",
@@ -234,7 +235,7 @@ def install_unittest_dependencies(session, *constraints):
 def unit(session, protobuf_implementation):
     # Install all test dependencies, then install this package in-place.
 
-    if protobuf_implementation == "cpp" and session.python in ("3.11", "3.12", "3.13"):
+    if protobuf_implementation == "cpp" and session.python in ("3.11", "3.12", "3.13", "3.14"):
         session.skip("cpp implementation is not supported in python 3.11+")
 
     constraints_path = str(
@@ -325,15 +326,15 @@ def system(session):
     if system_test_exists:
         session.run(
             "py.test",
-            "--quiet",
+            "--verbose",
             f"--junitxml=system_{session.python}_sponge_log.xml",
             system_test_path,
             *session.posargs,
         )
-    if system_test_folder_exists:
+    if os.path.exists(system_test_folder_path):
         session.run(
             "py.test",
-            "--quiet",
+            "--verbose",
             f"--junitxml=system_{session.python}_sponge_log.xml",
             system_test_folder_path,
             *session.posargs,
@@ -436,15 +437,15 @@ def docfx(session):
     )
 
 
-@nox.session(python="3.13")
+@nox.session(python="3.14")
 @nox.parametrize(
     "protobuf_implementation",
     ["python", "upb", "cpp"],
 )
 def prerelease_deps(session, protobuf_implementation):
     """Run all tests with prerelease versions of dependencies installed."""
 
-    if protobuf_implementation == "cpp" and session.python in ("3.11", "3.12", "3.13"):
+    if protobuf_implementation == "cpp" and session.python in ("3.11", "3.12", "3.13", "3.14"):
         session.skip("cpp implementation is not supported in python 3.11+")
 
     # Install all dependencies
@@ -542,4 +543,4 @@ def prerelease_deps(session, protobuf_implementation):
             env={
                 "PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION": protobuf_implementation,
             },
-        )
+        )