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Don't show stdlib paths for user_level_warnings #8625

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merged 2 commits into from
Jan 21, 2024
Merged

Don't show stdlib paths for user_level_warnings #8625

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54dae1b
Don't show stdlib paths for `user_level_warnings`
max-sixty Jan 19, 2024
d9674a2
Merge branch 'main' into stack-level-fix
max-sixty Jan 21, 2024
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23 changes: 16 additions & 7 deletions xarray/core/utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -60,6 +60,7 @@
ValuesView,
)
from enum import Enum
from pathlib import Path
from typing import (
TYPE_CHECKING,
Any,
Expand Down Expand Up @@ -1224,12 +1225,12 @@ def module_available(module: str, minversion: str | None = None) -> bool:


def find_stack_level(test_mode=False) -> int:
"""Find the first place in the stack that is not inside xarray.
"""Find the first place in the stack that is not inside xarray or the Python standard library.

This is unless the code emanates from a test, in which case we would prefer
to see the xarray source.

This function is taken from pandas.
This function is taken from pandas and modified to exclude standard library paths.

Parameters
----------
Expand All @@ -1240,19 +1241,27 @@ def find_stack_level(test_mode=False) -> int:
Returns
-------
stacklevel : int
First level in the stack that is not part of xarray.
First level in the stack that is not part of xarray or the Python standard library.
"""
import xarray as xr

pkg_dir = os.path.dirname(xr.__file__)
test_dir = os.path.join(pkg_dir, "tests")
pkg_dir = Path(xr.__file__).parent
test_dir = pkg_dir / "tests"

std_lib_dir = Path(sys.modules["os"].__file__).parent # Standard library path

# https://stackoverflow.com/questions/17407119/python-inspect-stack-is-slow
frame = inspect.currentframe()
n = 0
while frame:
fname = inspect.getfile(frame)
if fname.startswith(pkg_dir) and (not fname.startswith(test_dir) or test_mode):
if (
fname.startswith(str(pkg_dir))
and (not fname.startswith(str(test_dir)) or test_mode)
) or (
fname.startswith(str(std_lib_dir))
and "site-packages" not in fname
and "dist-packages" not in fname
):
frame = frame.f_back
n += 1
else:
Expand Down
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