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Fx self-check on macOS #22152

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Merged
ilevkivskyi merged 2 commits into from
Oct 9, 2026
+7 −2
Merged

Fx self-check on macOS #22152

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Fx self-check on macOS
ilevkivskyi Oct 9, 2026
246f9ab
Use if (and explain better)
ilevkivskyi Oct 9, 2026
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9 changes: 7 additions & 2 deletions mypy/util.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1009,8 +1009,13 @@ def get_available_threads() -> int:
# Not available on old Python versions on some platforms.
if sys.platform == "linux":
affinity = os.sched_getaffinity(0)
if PSUTIL_AVAILABLE and (psutil.LINUX or psutil.WINDOWS or psutil.FREEBSD):
# Currently not supported on macOS and NetBSD.
if (
PSUTIL_AVAILABLE
# This matches platform availability in psutil docs.
and (psutil.LINUX or psutil.WINDOWS or psutil.FREEBSD)
# This is redundant, but needed for self-check.
and sys.platform != "darwin"
):
affinity = psutil.Process().cpu_affinity()

assert cpu_count is not None
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