10000 gh-106233: Fix stacklevel in `zoneinfo.InvalidTZPathWarning` by sobolevn · Pull Request #106234 · python/cpython · GitHub
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gh-106233: Fix stacklevel in zoneinfo.InvalidTZPathWarning #106234

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Merged
merged 10 commits into from
Feb 6, 2024
Merged

gh-106233: Fix stacklevel in zoneinfo.InvalidTZPathWarning #106234

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ea9954f
gh-106233: Fix stacklevel in `zoneinfo.InvalidTZPathWarning`
sobolevn Jun 29, 2023
5d4dc18
Merge branch 'main' into issue-106233
AlexWaygood Aug 28, 2023
4ce9123
Use explicit `stacklevel` argument
sobolevn Feb 5, 2024
7572618
Merge branch 'main' into issue-106233
sobolevn Feb 5, 2024
303255f
Add test
sobolevn Feb 5, 2024
ccdbaa6
Better use `__file__`
sobolevn Feb 5, 2024
0a2800e
Address review
sobolevn Feb 6, 2024
2f9dbf4
Address review
sobolevn Feb 6, 2024
62b1fb2
Address review
sobolevn Feb 6, 2024
0ab22a4
Address review
sobolevn Feb 6, 2024
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Add test
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@sobolevn
sobolevn committed Feb 5, 2024
commit 303255f685bce97f210a1436aaa40269b0682b70
25 changes: 23 additions & 2 deletions Lib/test/test_zoneinfo/test_zoneinfo.py
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Original file line number Diff line number Diff line change
Expand Up @@ -14,13 +14,14 @@
import struct
import tempfile
import unittest
import warnings
from datetime import date, datetime, time, timedelta, timezone
from functools import cached_property

from test.support import MISSING_C_DOCSTRINGS
from test.test_zoneinfo import _support as test_support
from test.test_zoneinfo._support import OS_ENV_LOCK, TZPATH_TEST_LOCK, ZoneInfoTestBase
from test.support.import_helper import import_module
from test.support.import_helper import import_module, CleanImport

lzma = import_module('lzma')
py_zoneinfo, c_zoneinfo = test_support.get_modules()
Expand Down Expand Up @@ -1717,11 +1718,31 @@ def test_env_variable_relative_paths(self):
for input_paths, expected_paths in test_cases:
path_var = os.pathsep.join(input_paths)
with self.python_tzpath_context(path_var):
with self.subTest("module-level warning", path_var=path_var):
with CleanImport("zoneinfo", "zoneinfo._tzpath"):
with warnings.catch_warnings(record=True) as wlog:
import zoneinfo
self.assertEqual(len(wlog), 1)
# Since we use import hacks, we cannot just use `isinstance`
self.assertEqual(
type(wlog[0].message).__qualname__,
"InvalidTZPathWarning",
)
# It should represent the current file:
self.assertTrue(
wlog[0].filename.endswith("test_zoneinfo.py"),
msg=wlog[0].filename,
)

with self.subTest("warning", path_var=path_var):
# Note: Per PEP 615 the warning is implementation-defined
# behavior, other implementations need not warn.
with self.assertWarns(self.module.InvalidTZPathWarning):
with self.assertWarns(self.module.InvalidTZPathWarning) as w:
self.module.reset_tzpath()
self.assertTrue(
w.warnings[0].filename.endswith("test_zoneinfo.py"),
msg=w.warnings[0].filename,
)
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Why not simply:

Suggested change
self.assertTrue(
w.warnings[0].filename.endswith("test_zoneinfo.py"),
msg=w.warnings[0].filename,
)
self.assertEqual(w.warnings[0].filename, __file__)

?

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I've already done that in ccdbaa6 :)


tzpath = self.module.TZPATH
with self.subTest("filtered", path_var=path_var):
Expand Down
10 changes: 3 additions & 7 deletions Lib/zoneinfo/_tzpath.py
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Expand Up @@ -18,13 +18,9 @@ def _reset_tzpath(to=None, stacklevel=4):
base_tzpath = tzpaths
else:
env_var = os.environ.get("PYTHONTZPATH", None)
if env_var is not None:
base_tzpath = _parse_python_tzpath(env_var, stacklevel)
else:
base_tzpath = _parse_python_tzpath(
sysconfig.get_config_var("TZPATH"),
stacklevel,
)
if env_var is None:
env_var = sysconfig.get_config_var("TZPATH")
base_tzpath = _parse_python_tzpath(env_var, stacklevel)

TZPATH = tuple(base_tzpath)

Expand Down
0