Make documentation about GET_FOR opcode more clear

Eclips4 · Eclips4 · commit f5fb7f50d298 · 2024-01-26T10:39:08.000+02:00
diff --git a/Doc/library/dis.rst b/Doc/library/dis.rst
@@ -956,7 +956,8 @@ iterations of the loop.
 
 .. opcode:: GET_LEN
 
-   Perform ``STACK.append(len(STACK[-1]))``.
+   Perform ``STACK.append(len(STACK[-1]))``. Used in :keyword:`match` statements where
+   comparison with structure of pattern is needed.
 
    .. versionadded:: 3.10
 
