small grammatical change (GH-96138)

changed a to an under An example that uses most of the list methods

diff --git a/Doc/tutorial/datastructures.rst b/Doc/tutorial/datastructures.rst
index f5986fe292fb1b145052cc8bd5b0127aeded5cec..12b00be3793e14889d38fc9607d1ac9ac9a90386 100644 (file)
--- a/Doc/tutorial/datastructures.rst
+++ b/Doc/tutorial/datastructures.rst
@@ -106,7 +106,7 @@ An example that uses most of the list methods::
     0
     >>> fruits.index('banana')
     3
-    >>> fruits.index('banana', 4)  # Find next banana starting a position 4
+    >>> fruits.index('banana', 4)  # Find next banana starting at position 4
     6
     >>> fruits.reverse()
     >>> fruits