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document how sys.exit treats booleans #153715

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6 changes: 3 additions & 3 deletions Doc/library/sys.rst
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Expand Up @@ -553,9 +553,9 @@ always available. Unless explicitly noted otherwise, all variables are read-only

Raise a :exc:`SystemExit` exception, signaling an intention to exit the interpreter.

The optional argument *arg* can be an integer giving the exit status
(defaulting to zero), or another type of object. If it is an integer, zero
is considered "successful termination" and any nonzero value is considered
The optional argument *arg* can be an integer or boolean giving the exit status
(defaulting to zero), or another type of object. If it is an integer or boolean, zero/``False``
is considered "successful termination" and any nonzero value/``True`` is considered
"abnormal termination" by shells and the like. Most systems require it to be
in the range 0--127, and produce undefined results otherwise. Some systems
have a convention for assigning specific meanings to specific exit codes, but
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