Remove "ast" aliases from the parser module.

1 files changed, 10 insertions, 15 deletions

diff --git a/Doc/library/parser.rst b/Doc/library/parser.rst
index 5df8feb..f5cd877 100644
--- a/Doc/library/parser.rst
+++ b/Doc/library/parser.rst
@@ -30,11 +30,6 @@ the code forming the application.  It is also faster.
    Syntax Tree (AST) generation and compilation stage, using the :mod:`ast`
    module.
 
-   The :mod:`parser` module exports the names documented here also with "st"
-   replaced by "ast"; this is a legacy from the time when there was no other
-   AST and has nothing to do with the AST found in Python 2.5.  This is also the
-   reason for the functions' keyword arguments being called *ast*, not *st*.
-
 There are a few things to note about this module which are important to making
 use of the data structures created.  This is not a tutorial on editing the parse
 trees for Python code, but some examples of using the :mod:`parser` module are
@@ -170,9 +165,9 @@ executable code objects.  Parse trees may be extracted with or without line
 numbering information.
 
 
-.. function:: st2list(ast[, line_info])
+.. function:: st2list(st[, line_info])
 
-   This function accepts an ST object from the caller in *ast* and returns a
+   This function accepts an ST object from the caller in *st* and returns a
    Python list representing the equivalent parse tree.  The resulting list
    representation can be used for inspection or the creation of a new parse tree in
    list form.  This function does not fail so long as memory is available to build
@@ -188,9 +183,9 @@ numbering information.
    This information is omitted if the flag is false or omitted.
 
 
-.. function:: st2tuple(ast[, line_info])
+.. function:: st2tuple(st[, line_info])
 
-   This function accepts an ST object from the caller in *ast* and returns a
+   This function accepts an ST object from the caller in *st* and returns a
    Python tuple representing the equivalent parse tree.  Other than returning a
    tuple instead of a list, this function is identical to :func:`st2list`.
 
@@ -199,7 +194,7 @@ numbering information.
    information is omitted if the flag is false or omitted.
 
 
-.. function:: compilest(ast[, filename='<syntax-tree>'])
+.. function:: compilest(st[, filename='<syntax-tree>'])
 
    .. index::
       builtin: exec
@@ -208,7 +203,7 @@ numbering information.
    The Python byte compiler can be invoked on an ST object to produce code objects
    which can be used as part of a call to the built-in :func:`exec` or :func:`eval`
    functions. This function provides the interface to the compiler, passing the
-   internal parse tree from *ast* to the parser, using the source file name
+   internal parse tree from *st* to the parser, using the source file name
    specified by the *filename* parameter. The default value supplied for *filename*
    indicates that the source was an ST object.
 
@@ -233,22 +228,22 @@ determine if an ST was created from source code via :func:`expr` or
 :func:`suite` or from a parse tree via :func:`sequence2st`.
 
 
-.. function:: isexpr(ast)
+.. function:: isexpr(st)
 
    .. index:: builtin: compile
 
-   When *ast* represents an ``'eval'`` form, this function returns true, otherwise
+   When *st* represents an ``'eval'`` form, this function returns true, otherwise
    it returns false.  This is useful, since code objects normally cannot be queried
    for this information using existing built-in functions.  Note that the code
    objects created by :func:`compilest` cannot be queried like this either, and
    are identical to those created by the built-in :func:`compile` function.
 
 
-.. function:: issuite(ast)
+.. function:: issuite(st)
 
    This function mirrors :func:`isexpr` in that it reports whether an ST object
    represents an ``'exec'`` form, commonly known as a "suite."  It is not safe to
-   assume that this function is equivalent to ``not isexpr(ast)``, as additional
+   assume that this function is equivalent to ``not isexpr(st)``, as additional
    syntactic fragments may be supported in the future.