Making unreliability of returncode explicit in documentation.

python · gpshead · Apr 24, 2023 · May 2, 2022 · May 2, 2022 · May 2, 2022
commit 72565b8b9d1832b3e828b251ca334ea13dec2ed4
diff --git a/Doc/library/subprocess.rst b/Doc/library/subprocess.rst
@@ -897,6 +897,8 @@ The following attributes are also available:
    A negative value ``-N`` indicates that the child was terminated by signal
    ``N`` (POSIX only).
 
+   Note: The value stored in returncode may be out-of-date. Use poll() to reliably find the current return code.
+
 
 Windows Popen Helpers
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