From fea2a57282d243edd95c2166aa685c2568c47eaf Mon Sep 17 00:00:00 2001
From: Sergey Miryanov <sergey.miryanov@gmail.com>
Date: Sat, 2 May 2026 14:23:16 +0500
Subject: [PATCH] GH-148932: Improve error message if profiling.sampling run
 from venv on Windows platform (#149247)

---
 Lib/profiling/sampling/sample.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Lib/profiling/sampling/sample.py b/Lib/profiling/sampling/sample.py
index 6a76bbeeb24..9195f5ee6dd 100644
--- a/Lib/profiling/sampling/sample.py
+++ b/Lib/profiling/sampling/sample.py
@@ -58,6 +58,10 @@ class SampleProfiler:
         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)