--- a/docs/introduction.rst	Mon Jun 12 09:28:36 2023 +0200
+++ b/docs/introduction.rst	Wed Jun 14 01:11:01 2023 +0200
@@ -372,12 +372,30 @@
          Contains the current node's computername (or whatever
          :py:func:`platform.node` returns)
 
-4. The namespace ``ENV``
+4. The namespace ``SYS``
+
+   Available functions:
+
+     ``prefix``
+         Contains the content of the current running Python's
+         :py:data:`sys.prefix`.
+
+     ``base_prefix``
+         Contains the content of the current running Python's
+         :py:data:`sys.base_prefix`.
+
+         Raises :py:class:`KeyError` if the attribute is not available.
+
+     ``platform``
+         Contains the content of the current running Python's
+         :py:data:`sys.platform`.
+
+5. The namespace ``ENV``
 
    This namespace contains all the environment variables as they are
    available from :py:data:`os.environ`.
 
-5. The namespace ``PY``
+6. The namespace ``PY``
 
    Contains selected values from the running Python:
 
@@ -394,7 +412,7 @@
      ``implementation``
          The return value of :py:func:`platform.python_implementation`
 
-6. The namespace ``AWS``
+7. The namespace ``AWS``
 
    Contains some metadata for AWS instances when running from within
    AWS: