Issue #26462: Doc: avoid literal_block warnings, fix syntax highlighting.
Patch by Julien Palard.
diff --git a/Doc/tutorial/modules.rst b/Doc/tutorial/modules.rst
index 7b6fd9c..0ef07a3 100644
--- a/Doc/tutorial/modules.rst
+++ b/Doc/tutorial/modules.rst
@@ -135,7 +135,9 @@
you can make the file usable as a script as well as an importable module,
because the code that parses the command line only runs if the module is
-executed as the "main" file::
+executed as the "main" file:
+
+.. code-block:: shell-session
$ python fibo.py 50
1 1 2 3 5 8 13 21 34