simpler solution

Author: twoertwein

pyproject.toml

@@ -197,6 +197,14 @@ useLibraryCodeForTypes = false
 [tool.codespell]
 ignore-words-list = "indext, mose, sav, ser"
 
+[tool.pytest.ini_options]
+filterwarnings = [
+  # treat warnings as errors
+  "error",
+  # until there is a new dateutil release: github.com/dateutil/dateutil/pull/1285
+  "ignore:datetime.datetime.utc:DeprecationWarning",
+]
+
 # Next line needed to avoid poetry complaint
 [tool.setuptools_scm]
 

scripts/test/run.py

@@ -15,8 +15,8 @@ def pyright_src():
     subprocess.run(cmd, check=True)
 
 
-def pytest(flags: tuple[str, ...] = ("-Werror",)):
-    cmd = ["pytest", "--cache-clear", *flags]
+def pytest():
+    cmd = ["pytest", "--cache-clear"]
     subprocess.run(cmd, check=True)
 
 

tests/__init__.py

@@ -7,29 +7,23 @@
 )
 import os
 import platform
-import sys
 from typing import (
     TYPE_CHECKING,
     Final,
-    TypeVar,
 )
 
+import pandas as pd
+from pandas.util.version import Version
 import pytest
 
-if sys.version_info < (3, 12):
-    import pandas as pd
-else:
-    with pytest.warns(DeprecationWarning, match="datetime.datetime.utcfromtimestamp"):
-        import pandas as pd
-from pandas.util.version import Version
+from pandas._typing import T
 
-_T = TypeVar("_T")
 TYPE_CHECKING_INVALID_USAGE: Final = TYPE_CHECKING
 WINDOWS = os.name == "nt" or "cygwin" in platform.system().lower()
 PD_LTE_21 = Version(pd.__version__) < Version("2.1.999")
 
 
-def check(actual: _T, klass: type, dtype: type | None = None, attr: str = "left") -> _T:
+def check(actual: T, klass: type, dtype: type | None = None, attr: str = "left") -> T:
     if not isinstance(actual, klass):
         raise RuntimeError(f"Expected type '{klass}' but got '{type(actual)}'")
     if dtype is None:

tests/test_frame.py

@@ -14,7 +14,6 @@
 import io
 import itertools
 from pathlib import Path
-import platform
 import string
 from typing import (
     TYPE_CHECKING,
@@ -1822,30 +1821,24 @@ def test_frame_getitem_isin() -> None:
 def test_to_excel() -> None:
     df = pd.DataFrame(data={"col1": [1, 2], "col2": [3, 4]})
 
-    with pytest_warns_bounded(
-        DeprecationWarning,
-        match="datetime.datetime.utcnow",
-        lower="3.11.99",
-        version_str=platform.python_version(),
-    ):
-        with ensure_clean() as path:
-            df.to_excel(path, engine="openpyxl")
-            check(assert_type(pd.read_excel(path), pd.DataFrame), pd.DataFrame)
-        with ensure_clean() as path:
-            df.to_excel(Path(path), engine="openpyxl")
-            check(assert_type(pd.read_excel(path), pd.DataFrame), pd.DataFrame)
-        with ensure_clean() as path:
-            df.to_excel(path, engine="openpyxl", startrow=1, startcol=1, header=False)
-            check(assert_type(pd.read_excel(path), pd.DataFrame), pd.DataFrame)
-        with ensure_clean() as path:
-            df.to_excel(path, engine="openpyxl", sheet_name="sheet", index=False)
-            check(assert_type(pd.read_excel(path), pd.DataFrame), pd.DataFrame)
-        with ensure_clean() as path:
-            df.to_excel(path, engine="openpyxl", header=["x", "y"])
-            check(assert_type(pd.read_excel(path), pd.DataFrame), pd.DataFrame)
-        with ensure_clean() as path:
-            df.to_excel(path, engine="openpyxl", columns=["col1"])
-            check(assert_type(pd.read_excel(path), pd.DataFrame), pd.DataFrame)
+    with ensure_clean() as path:
+        df.to_excel(path, engine="openpyxl")
+        check(assert_type(pd.read_excel(path), pd.DataFrame), pd.DataFrame)
+    with ensure_clean() as path:
+        df.to_excel(Path(path), engine="openpyxl")
+        check(assert_type(pd.read_excel(path), pd.DataFrame), pd.DataFrame)
+    with ensure_clean() as path:
+        df.to_excel(path, engine="openpyxl", startrow=1, startcol=1, header=False)
+        check(assert_type(pd.read_excel(path), pd.DataFrame), pd.DataFrame)
+    with ensure_clean() as path:
+        df.to_excel(path, engine="openpyxl", sheet_name="sheet", index=False)
+        check(assert_type(pd.read_excel(path), pd.DataFrame), pd.DataFrame)
+    with ensure_clean() as path:
+        df.to_excel(path, engine="openpyxl", header=["x", "y"])
+        check(assert_type(pd.read_excel(path), pd.DataFrame), pd.DataFrame)
+    with ensure_clean() as path:
+        df.to_excel(path, engine="openpyxl", columns=["col1"])
+        check(assert_type(pd.read_excel(path), pd.DataFrame), pd.DataFrame)
 
 
 def test_join() -> None: