Add missing docs and directives related to PEP 3147 and byte-compilation

1 files changed, 20 insertions, 13 deletions

diff --git a/Doc/library/py_compile.rst b/Doc/library/py_compile.rst
index b5b9010..d2e3208 100644
--- a/Doc/library/py_compile.rst
+++ b/Doc/library/py_compile.rst
@@ -24,25 +24,27 @@ byte-code cache files in the directory containing the source code.
 
 .. function:: compile(file, cfile=None, dfile=None, doraise=False, optimize=-1)
 
-   Compile a source file to byte-code and write out the byte-code cache  file.  The
-   source code is loaded from the file name *file*.  The  byte-code is written to
-   *cfile*, which defaults to the :PEP:`3147` path, ending in ``.pyc``
-   (``'.pyo`` if optimization is enabled in the current interpreter).  For
-   example, if *file* is ``/foo/bar/baz.py`` *cfile* will default to
-   ``/foo/bar/__pycache__/baz.cpython-32.pyc`` for Python 3.2.  If *dfile* is specified, it is used as the
-   name of the source file in error messages instead of *file*.  If *doraise* is
-   true, a :exc:`PyCompileError` is raised when an error is encountered while
-   compiling *file*. If *doraise* is false (the default), an error string is
-   written to ``sys.stderr``, but no exception is raised.  This function
-   returns the path to byte-compiled file, i.e. whatever *cfile* value was
-   used.
+   Compile a source file to byte-code and write out the byte-code cache  file.
+   The source code is loaded from the file name *file*.  The  byte-code is
+   written to *cfile*, which defaults to the :PEP:`3147` path, ending in
+   ``.pyc`` (``.pyo`` if optimization is enabled in the current interpreter).
+   For example, if *file* is ``/foo/bar/baz.py`` *cfile* will default to
+   ``/foo/bar/__pycache__/baz.cpython-32.pyc`` for Python 3.2.  If *dfile* is
+   specified, it is used as the name of the source file in error messages when
+   instead of *file*.  If *doraise* is true, a :exc:`PyCompileError` is raised
+   when an error is encountered while compiling *file*. If *doraise* is false
+   (the default), an error string is written to ``sys.stderr``, but no exception
+   is raised.  This function returns the path to byte-compiled file, i.e.
+   whatever *cfile* value was used.
 
    *optimize* controls the optimization level and is passed to the built-in
    :func:`compile` function.  The default of ``-1`` selects the optimization
    level of the current interpreter.
 
    .. versionchanged:: 3.2
-      Added the *optimize* parameter.
+      Changed default value of *cfile* to be :PEP:`3147`-compliant.  Previous
+      default was *file* + ``'c'`` (``'o'`` if optimization was enabled).
+      Also added the *optimize* parameter.
 
 
 .. function:: main(args=None)
@@ -51,6 +53,11 @@ byte-code cache files in the directory containing the source code.
    line, if *args* is ``None``) are compiled and the resulting bytecode is
    cached in the normal manner.  This function does not search a directory
    structure to locate source files; it only compiles files named explicitly.
+   If ``'-'`` is the only parameter in args, the list of files is taken from
+   standard input.
+
+   .. versionchanged:: 3.2
+      Added support for ``'-'``.
 
 When this module is run as a script, the :func:`main` is used to compile all the
 files named on the command line.  The exit status is nonzero if one of the files