8000 Improve `InvalidTZPathWarning` warning with a stacklevel · Issue #106233 · python/cpython · GitHub
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sobolevn opened this issue Jun 29, 2023 · 2 comments
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Improve InvalidTZPathWarning warning with a stacklevel #106233

sobolevn opened this issue Jun 29, 2023 · 2 comments
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@sobolevn
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stdlib Python modules in the Lib dir type-bug An unexpected behavior, bug, or error

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@sobolevn
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sobolevn commented Jun 29, 2023 •
edited by bedevere-app bot
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Given this code:

# ex.py
import zoneinfo

print(zoneinfo.TZPATH)

And this command to run it: PYTHONTZPATH=ex.py ./python.exe ex.py

Output will be:

» PYTHONTZPATH=ex.py ./python.exe ex.py
/Users/sobolev/Desktop/cpython/Lib/zoneinfo/_tzpath.py:44: InvalidTZPathWarning: Invalid paths specified in PYTHONTZPATH environment variable. Paths should be absolute but found the following relative paths:
    ex.py
  warnings.warn(
()

Setting stacklevel

From 1 to 5:

/Users/sobolev/Desktop/cpython/Lib/zoneinfo/_tzpath.py:44: InvalidTZPathWarning: Invalid paths specified in PYTHONTZPATH environment variable. Paths should be absolute but found the following relative paths:
    ex.py
  warnings.warn(

/Users/sobolev/Desktop/cpython/Lib/zoneinfo/_tzpath.py:22: InvalidTZPathWarning: Invalid paths specified in PYTHONTZPATH environment variable. Paths should be absolute but found the following relative paths:
    ex.py
  base_tzpath = _parse_python_tzpath(env_var)

/Users/sobolev/Desktop/cpython/Lib/zoneinfo/_tzpath.py:176: InvalidTZPathWarning: Invalid paths specified in PYTHONTZPATH environment variable. Paths should be absolute but found the following relative paths:
    ex.py
  reset_tzpath()

/Users/sobolev/Desktop/cpython/Lib/zoneinfo/__init__.py:10: InvalidTZPathWarning: Invalid paths specified in PYTHONTZPATH environment variable. Paths should be absolute but found the following relative paths:
    ex.py
  from . import _tzpath

/Users/sobolev/Desktop/cpython/ex.py:1: InvalidTZPathWarning: Invalid paths specified in PYTHONTZPATH environment variable. Paths should be absolute but found the following relative paths:
    ex.py
  import zoneinfo

Looks like 5 is the best in terms of being informative, where this warning comes from.
I will send a PR with the fix.

CC @pganssle

Linked PRs
@sobolevn sobolevn added type-bug An unexpected behavior, bug, or error stdlib Python modules in the Lib dir labels Jun 29, 2023
@sobolevn sobolevn self-assigned this Jun 29, 2023
sobolevn added a commit to sobolevn/cpython that referenced this issue Jun 29, 2023
@sobolevn
pythongh-106233: Fix stacklevel in zoneinfo.InvalidTZPathWarning
8000
ea9954f
@bedevere-bot bedevere-bot mentioned this issue Jun 29, 2023
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@serhiy-storchaka
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reset_tzpath() is a public API. When you call it directly the warning should point at the caller place.

There is an existing test for InvalidTZPathWarning: test_env_variable_relative_paths. Test that it points at the right place:

-                    with self.assertWarns(self.module.InvalidTZPathWarning):
+                    with self.assertWarns(self.module.InvalidTZPathWarning) as w:
                         self.module.reset_tzpath()
+                    self.assertEqual(w.filename, __file__)

serhiy-storchaka pushed a commit that referenced this issue Feb 6, 2024
@sobolevn
gh-106233: Fix stacklevel in zoneinfo.InvalidTZPathWarning (GH-106234)
d7334e2
miss-islington pushed a commit to miss-islington/cpython that referenced this issue Feb 6, 2024
@sobolevn @miss-islington
pythongh-106233: Fix stacklevel in zoneinfo.InvalidTZPathWarning (pyt…
0a0c1e8 
…honGH-106234)

(cherry picked from commit d7334e2)

Co-authored-by: Nikita Sobolev <mail@sobolevn.me>
@bedevere-app bedevere-app bot mentioned this issue Feb 6, 2024
Merged
serhiy-storchaka pushed a commit that referenced this issue Feb 6, 2024
@miss-islington @sobolevn
[3.12] gh-106233: Fix stacklevel in zoneinfo.InvalidTZPathWarning (GH…
7974f71 
…-106234) (GH-115081)

(cherry picked from commit d7334e2)

Co-authored-by: Nikita Sobolev <mail@sobolevn.me>
fsc-eriker pushed a commit to fsc-eriker/cpython that referenced this issue Feb 14, 2024
@sobolevn @fsc-eriker
pythongh-106233: Fix stacklevel in zoneinfo.InvalidTZPathWarning (pyt…
f6b8e2b 
…honGH-106234)
@hugovk
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hugovk commented Mar 15, 2024

Triage: can this be closed or is there more to do?

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