Issue #12322: clarify xpath reference for cases where the path reaches ancestors of the start element. Also add missing markup for a None. Thanks to patrick vrijlandt and Mike Hoy for the report and initial patches.
diff --git a/Doc/library/xml.etree.elementtree.rst b/Doc/library/xml.etree.elementtree.rst
index 16bb00c..cd4a490 100644
--- a/Doc/library/xml.etree.elementtree.rst
+++ b/Doc/library/xml.etree.elementtree.rst
@@ -291,7 +291,9 @@
| | current element. For example, ``.//egg`` selects |
| | all ``egg`` elements in the entire tree. |
+-----------------------+------------------------------------------------------+
-| ``..`` | Selects the parent element. |
+| ``..`` | Selects the parent element. Returns ``None`` if the |
+| | path attempts to reach the ancestors of the start |
+| | element (the element ``find`` was called on). |
+-----------------------+------------------------------------------------------+
| ``[@attrib]`` | Selects all elements that have the given attribute. |
+-----------------------+------------------------------------------------------+
@@ -521,7 +523,7 @@
.. method:: clear()
Resets an element. This function removes all subelements, clears all
- attributes, and sets the text and tail attributes to None.
+ attributes, and sets the text and tail attributes to ``None``.
.. method:: get(key, default=None)