summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--Doc/library/sys.rst5
1 files changed, 5 insertions, 0 deletions
diff --git a/Doc/library/sys.rst b/Doc/library/sys.rst
index f2e5983ae7..b535c22f50 100644
--- a/Doc/library/sys.rst
+++ b/Doc/library/sys.rst
@@ -890,6 +890,11 @@ always available.
.. versionadded:: 2.4
+ .. impl-detail::
+
+ This function is intimately bound to CPython implementation details and
+ thus not likely to be implemented elsewhere.
+
.. data:: stdin
stdout