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GH-148932: Improve error message if profiling.sampling run from venv on Windows platform by sergey-miryanov · Pull Request #149247 · python/cpython · GitHub

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GH-148932: Improve error message if profiling.sampling run from venv on Windows platform #149247

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Merged
pablogsal merged 2 commits into from
May 2, 2026
Conversation 2 Commits 2 Checks 46 Files changed
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GH-148932: Improve error message if profiling.sampling run from venv on Windows platform #149247

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Improve error message if profiling.sampling run from venv on Windows …
sergey-miryanov May 1, 2026
0ee7da6
Merge branch 'main' into bug/profiling+windows-venv
StanFromIreland May 2, 2026
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4 changes: 4 additions & 0 deletions Lib/profiling/sampling/sample.py
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Original file line number Diff line number Diff line change
Expand Up @@ -58,6 +58,10 @@ def __init__(self, pid, sample_interval_usec, all_threads, *, mode=PROFILING_MOD
try:
self.unwinder = self._new_unwinder(native, gc, opcodes, skip_non_matching_threads)
except RuntimeError as err:
if os.name == "nt" and sys.executable.endswith("python.exe"):
raise SystemExit(
"Running profiling.sampling from virtualenv on Windows platform is not supported"
) from err
raise SystemExit(err) from err
# Track sample intervals and total sample count
self.sample_intervals = deque(maxlen=100)
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