diff --git a/Doc/library/_ast.rst b/Doc/library/_ast.rst
deleted file mode 100644
index 80b8a37..0000000
--- a/Doc/library/_ast.rst
+++ /dev/null
@@ -1,85 +0,0 @@
-.. _ast:
-
-Abstract Syntax Trees
-=====================
-
-.. module:: _ast
-   :synopsis: Abstract Syntax Tree classes.
-
-.. sectionauthor:: Martin v. Löwis <martin@v.loewis.de>
-
-
-.. versionadded:: 2.5
-
-The ``_ast`` module helps Python applications to process trees of the Python
-abstract syntax grammar.  The abstract syntax itself might change with each
-Python release; this module helps to find out programmatically what the current
-grammar looks like.
-
-An abstract syntax tree can be generated by passing :data:`_ast.PyCF_ONLY_AST`
-as a flag to the :func:`compile` builtin function. The result will be a tree of
-objects whose classes all inherit from :class:`_ast.AST`.
-
-A modified abstract syntax tree can be compiled into a Python code object using
-the built-in :func:`compile` function.
-
-The actual classes are derived from the ``Parser/Python.asdl`` file, which is
-reproduced below. There is one class defined for each left-hand side symbol in
-the abstract grammar (for example, ``_ast.stmt`` or ``_ast.expr``). In addition,
-there is one class defined for each constructor on the right-hand side; these
-classes inherit from the classes for the left-hand side trees. For example,
-``_ast.BinOp`` inherits from ``_ast.expr``. For production rules with
-alternatives (aka "sums"), the left-hand side class is abstract: only instances
-of specific constructor nodes are ever created.
-
-Each concrete class has an attribute ``_fields`` which gives the names of all
-child nodes.
-
-Each instance of a concrete class has one attribute for each child node, of the
-type as defined in the grammar. For example, ``_ast.BinOp`` instances have an
-attribute ``left`` of type ``_ast.expr``.   Instances of ``_ast.expr`` and
-``_ast.stmt`` subclasses also have lineno and col_offset attributes.  The lineno
-is the line number of source text (1 indexed so the first line is line 1) and
-the col_offset is the utf8 byte offset of the first token that generated the
-node.  The utf8 offset is recorded because the parser uses utf8 internally.
-
-If these attributes are marked as optional in the grammar (using a question
-mark), the value might be ``None``. If the attributes can have zero-or-more
-values (marked with an asterisk), the values are represented as Python lists.
-All possible attributes must be present and have valid values when compiling an
-AST with :func:`compile`.
-
-The constructor of a class ``_ast.T`` parses their arguments as follows:
-
-* If there are positional arguments, there must be as many as there are items in
-  ``T._fields``; they will be assigned as attributes of these names.
-* If there are keyword arguments, they will set the attributes of the same names
-  to the given values.
-
-For example, to create and populate a ``UnaryOp`` node, you could use ::
-
-   node = _ast.UnaryOp()
-   node.op = _ast.USub()
-   node.operand = _ast.Num()
-   node.operand.n = 5
-   node.operand.lineno = 0
-   node.operand.col_offset = 0
-   node.lineno = 0
-   node.col_offset = 0
-
-or the more compact ::
-
-   node = _ast.UnaryOp(_ast.USub(), _ast.Num(5, lineno=0, col_offset=0),
-                       lineno=0, col_offset=0)
-
-
-
-Abstract Grammar
-----------------
-
-The module defines a string constant ``__version__`` which is the decimal
-subversion revision number of the file shown below.
-
-The abstract grammar is currently defined as follows:
-
-.. literalinclude:: ../../Parser/Python.asdl
diff --git a/Doc/library/inspect.rst b/Doc/library/inspect.rst
index 4ee68f6..5af020e 100644
--- a/Doc/library/inspect.rst
+++ b/Doc/library/inspect.rst
@@ -376,13 +376,9 @@
 Retrieving source code
 ----------------------
 
-
 .. function:: getdoc(object)
 
-   Get the documentation string for an object. All tabs are expanded to spaces.  To
-   clean up docstrings that are indented to line up with blocks of code, any
-   whitespace than can be uniformly removed from the second line onwards is
-   removed.
+   Get the documentation string for an object, cleaned up with :func:`cleandoc`.
 
 
 .. function:: getcomments(object)
@@ -429,6 +425,15 @@
    cannot be retrieved.
 
 
+.. function:: cleandoc(doc)
+
+   Clean up indentation from docstrings that are indented to line up with blocks
+   of code.  Any whitespace that can be uniformly removed from the second line
+   onwards is removed.  Also, all tabs are expanded to spaces.
+
+   .. versionadded:: 2.6
+
+
 .. _inspect-classes-functions:
 
 Classes and functions
diff --git a/Doc/library/language.rst b/Doc/library/language.rst
index 7d6af7d..bcf9ac0 100644
--- a/Doc/library/language.rst
+++ b/Doc/library/language.rst
@@ -15,7 +15,7 @@
 .. toctree::
 
    parser.rst
-   _ast.rst
+   ast.rst
    symbol.rst
    token.rst
    keyword.rst