Patch #2488: Add sys.maxsize.
diff --git a/Doc/library/sys.rst b/Doc/library/sys.rst
index 4f6416f..390f73d 100644
--- a/Doc/library/sys.rst
+++ b/Doc/library/sys.rst
@@ -521,6 +521,11 @@
is at least 2\*\*31-1. The largest negative integer is ``-maxint-1`` --- the
asymmetry results from the use of 2's complement binary arithmetic.
+.. data:: maxsize
+
+ The largest positive integer supported by the platform's Py_ssize_t type,
+ and thus the maximum size lists, strings, dicts, and many other containers
+ can have.
.. data:: maxunicode