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-rw-r--r--docs/library/sys.rst7
1 files changed, 4 insertions, 3 deletions
diff --git a/docs/library/sys.rst b/docs/library/sys.rst
index 237ebaf91f..a6543da275 100644
--- a/docs/library/sys.rst
+++ b/docs/library/sys.rst
@@ -7,10 +7,11 @@
Functions
---------
-.. function:: exit([retval])
+.. function:: exit(retval=0)
- Raise a ``SystemExit`` exception. If an argument is given, it is the
- value given to ``SystemExit``.
+ Terminate current program with a given exit code. Underlyingly, this
+ function raise as ``SystemExit`` exception. If an argument is given, its
+ value given as an argument to ``SystemExit``.
.. function:: print_exception(exc, [file])