From d5a77416064f8155b0a0817211541c296b49d2c7 Mon Sep 17 00:00:00 2001
From: Tom McDermott <spon@wattwatchers.com.au>
Date: Tue, 6 Aug 2019 16:18:07 +1000
Subject: [PATCH] docs/library: Document that sys.version_info returns a
 3-tuple only.

See issue #4970.
---
 docs/library/sys.rst | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/docs/library/sys.rst b/docs/library/sys.rst
index aee2e54ee..d3cc308d8 100644
--- a/docs/library/sys.rst
+++ b/docs/library/sys.rst
@@ -134,3 +134,9 @@ Constants
 .. data:: version_info
 
    Python language version that this implementation conforms to, as a tuple of ints.
+
+    .. admonition:: Difference to CPython
+      :class: attention
+
+      Only the first three version numbers (major, minor, micro) are supported and
+      they can be referenced only by index, not by name.
-- 
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