XFail duckdb tests in Python 3.12

noxfile.py

@@ -52,6 +52,13 @@
 ]
 
 
+def _clean_py312_deps(session: Session, dependencies: list[str]) -> None:
+    """Clean dependencies for Python 3.12."""
+    if session.python == "3.12":
+        dependencies.remove("duckdb")
+        dependencies.remove("duckdb-engine")
+
+
 @session(python=main_python_version)
 def mypy(session: Session) -> None:
     """Check types with mypy."""
@@ -77,6 +84,7 @@ def mypy(session: Session) -> None:
 @session(python=python_versions)
 def tests(session: Session) -> None:
     """Execute pytest tests and compute coverage."""
+    _clean_py312_deps(session, test_dependencies)
     session.install(".[s3,parquet]")
     session.install(*test_dependencies)
 
@@ -107,6 +115,7 @@ def tests(session: Session) -> None:
 @session(python=main_python_version)
 def benches(session: Session) -> None:
     """Run benchmarks."""
+    _clean_py312_deps(session, test_dependencies)
     session.install(".[s3]")
     session.install(*test_dependencies)
     sqlalchemy_version = os.environ.get("SQLALCHEMY_VERSION")
@@ -129,6 +138,7 @@ def update_snapshots(session: Session) -> None:
     """Update pytest snapshots."""
     args = session.posargs or ["-m", "snapshot"]
 
+    _clean_py312_deps(session, test_dependencies)
     session.install(".")
     session.install(*test_dependencies)
     session.run("pytest", "--snapshot-update", *args)

pyproject.toml

@@ -125,8 +125,11 @@ coverage = [
     {extras = ["toml"], version = ">=7.2,<7.3", python = "<3.8"},
     {extras = ["toml"], version = ">=7.2", python = ">=3.8"},
 ]
-duckdb = ">=0.8.0"
-duckdb-engine = ">=0.9.2"
+
+# TODO: Remove the Python 3.12 marker when DuckDB supports it
+duckdb = { version = ">=0.8.0", python = "<3.12" }
+duckdb-engine = { version = ">=0.9.2", python = "<3.12" }
+
 mypy = [
     { version = ">=1.0,<1.5", python = "<3.8" },
     { version = ">=1.0", python = ">=3.8" },

tests/core/test_connector_sql.py

@@ -1,12 +1,14 @@
 from __future__ import annotations
 
+import sys
 import typing as t
 from decimal import Decimal
 from unittest import mock
 
 import pytest
 import sqlalchemy
 from sqlalchemy.dialects import registry, sqlite
+from sqlalchemy.exc import NoSuchModuleError
 
 from singer_sdk.connectors import SQLConnector
 from singer_sdk.exceptions import ConfigValidationError
@@ -308,6 +310,11 @@ def get_column_alter_ddl(
         )
 
 
+@pytest.mark.xfail(
+    reason="DuckDB does not build on Python 3.12 yet",
+    condition=sys.version_info >= (3, 12),
+    raises=NoSuchModuleError,
+)
 class TestDuckDBConnector:
     @pytest.fixture
     def connector(self):