Issue #10089: Add support for arbitrary -X options on the command-line.
They can be retrieved through a new attribute `sys._xoptions`.
diff --git a/Doc/using/cmdline.rst b/Doc/using/cmdline.rst
index 7da1954..6f3cfbe 100644
--- a/Doc/using/cmdline.rst
+++ b/Doc/using/cmdline.rst
@@ -321,6 +321,17 @@
.. note:: The line numbers in error messages will be off by one.
+
+.. cmdoption:: -X
+
+ Reserved for various implementation-specific options. CPython currently
+ defines none of them, but allows to pass arbitrary values and retrieve
+ them through the :data:`sys._xoptions` dictionary.
+
+ .. versionchanged:: 3.2
+ It is now allowed to pass :option:`-X` with CPython.
+
+
Options you shouldn't use
~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -330,11 +341,6 @@
.. _Jython: http://jython.org
-.. cmdoption:: -X
-
- Reserved for alternative implementations of Python to use for their own
- purposes.
-
.. _using-on-envvars:
Environment variables